diff --git a/admin-frontend-vue/src/pages/records/RecordsSoftwareVersionPage.vue b/admin-frontend-vue/src/pages/records/RecordsSoftwareVersionPage.vue
index a980008c..d7b80274 100644
--- a/admin-frontend-vue/src/pages/records/RecordsSoftwareVersionPage.vue
+++ b/admin-frontend-vue/src/pages/records/RecordsSoftwareVersionPage.vue
@@ -5,7 +5,7 @@ import { formatDateTime } from '@/utils/datetime'
 import { computed, onMounted, ref, watch } from 'vue'
 import OldPagination from '@/components/OldPagination.vue'
 import { ElMessage } from 'element-plus'
-import { fetchSoftwareVersions, uploadSoftwareVersion } from './version-api.ts'
+import { fetchSoftwareVersions, uploadSoftwareVersion, deleteSoftwareVersions } from './version-api.ts'
 import type { SoftwareVersionItem } from './version-dto.ts'
 import { isNonEmptyVersion } from './version-dto.ts'
 
@@ -29,8 +29,53 @@ watch(filteredItems, () => {
   page.value = Math.min(page.value, Math.max(1, Math.ceil(filteredItems.value.length / pageSize.value)))
 })
 
+// 勾选删除：选中跨页累计；表头复选只作用于当前页，避免误选整表。
+const selectedIds = ref<Set<number>>(new Set())
+const selectedCount = computed(() => selectedIds.value.size)
+function toggleSelect(id: number) {
+  const next = new Set(selectedIds.value)
+  if (next.has(id)) next.delete(id)
+  else next.add(id)
+  selectedIds.value = next
+}
+function toggleSelectAllPage() {
+  const pageRows = pagedVersions.value
+  const allOn = pageRows.length > 0 && pageRows.every((row) => selectedIds.value.has(row.id))
+  const next = new Set(selectedIds.value)
+  if (allOn) pageRows.forEach((row) => next.delete(row.id))
+  else pageRows.forEach((row) => next.add(row.id))
+  selectedIds.value = next
+}
+async function removeSelected() {
+  if (!selectedCount.value) return
+  const rows = items.value.filter((row) => selectedIds.value.has(row.id))
+  const sample = rows.slice(0, 3).map((row) => row.version).join('、')
+  const summary = rows.length > 3 ? `${sample} 等 ${rows.length} 个` : sample
+  if (!window.confirm(`确认删除选中的 ${rows.length} 个版本（${summary}）？此操作不可恢复。`)) return
+  try {
+    await deleteSoftwareVersions(Array.from(selectedIds.value))
+    ElMessage.success(`已删除 ${rows.length} 个版本`)
+    selectedIds.value = new Set()
+    await load()
+  } catch (error) {
+    ElMessage.error(error instanceof Error ? error.message : '删除失败')
+  }
+}
+async function removeOne(row: SoftwareVersionItem) {
+  if (!window.confirm(`确认删除版本 ${row.version}？此操作不可恢复。`)) return
+  try {
+    await deleteSoftwareVersions([row.id])
+    ElMessage.success('删除成功')
+    selectedIds.value = new Set([...selectedIds.value].filter((id) => id !== row.id))
+    await load()
+  } catch (error) {
+    ElMessage.error(error instanceof Error ? error.message : '删除失败')
+  }
+}
+
 const uploadVisible = ref(false)
 const uploading = ref(false)
+const uploadPercent = ref(0)
 const newVersion = ref('')
 const pickedFile = ref<File | null>(null)
 /** 弹窗内成功/失败文案（对齐 admin.js msgVersion 留驻）。 */
@@ -63,6 +108,7 @@ function openUpload() {
 async function submitUpload() {
   uploadMsg.value = ''
   uploadMsgOk.value = false
+  uploadPercent.value = 0
   if (!isNonEmptyVersion(newVersion.value)) {
     uploadMsg.value = '请填写版本号'
     return
@@ -75,16 +121,23 @@ async function submitUpload() {
     uploadMsg.value = '仅支持 .zip 格式'
     return
   }
+  if (pickedFile.value.size > 512 * 1024 * 1024) {
+    uploadMsg.value = '文件超过允许的大小限制'
+    return
+  }
   uploading.value = true
   try {
-    const created = await uploadSoftwareVersion(newVersion.value.trim(), pickedFile.value, pickedFile.value.name)
-    const version = created?.version || newVersion.value.trim()
-    const link = created?.fileUrl
-    // 对齐 admin.js:6484-6488：弹窗保持打开，成功文案(含链接)留驻可复制，仅清空输入并刷新列表。
-    uploadMsg.value = link ? `发布成功。版本：${version}，链接：${link}` : `发布成功。版本：${version}`
+    // 浏览器直传 MinIO：presign → PUT（进度条）→ confirm 落库。
+    await uploadSoftwareVersion(newVersion.value.trim(), pickedFile.value, pickedFile.value.name, (p) => {
+      uploadPercent.value = p
+      uploadMsg.value = p >= 100 ? '上传完成，正在登记版本...' : `正在上传：${p}%`
+    })
+    // 成功仅提示“发布成功”，弹窗留驻，不再展示版本号与链接。
+    uploadMsg.value = '发布成功'
     uploadMsgOk.value = true
     newVersion.value = ''
     pickedFile.value = null
+    uploadPercent.value = 0
     load()
   } catch (error) {
     uploadMsg.value = error instanceof Error ? error.message : '上传失败'
@@ -103,6 +156,7 @@ onMounted(load)
         <h3>版本列表</h3>
         <div class="version-head-tools">
           <input v-model="versionKeyword" type="text" placeholder="搜索版本号" class="version-keyword" />
+          <button class="btn btn-danger" type="button" :disabled="!selectedCount" @click="removeSelected">删除选中{{ selectedCount ? `(${selectedCount})` : '' }}</button>
           <button class="btn" type="button" @click="openUpload">上传新版本</button>
         </div>
       </div>
@@ -111,32 +165,39 @@ onMounted(load)
         <table>
           <thead>
             <tr>
-              <th style="width: 120px">版本号</th>
+              <th style="width: 40px" class="th-select">
+                <input type="checkbox" :checked="pagedVersions.length > 0 && pagedVersions.every((r) => selectedIds.has(r.id))" @change="toggleSelectAllPage" :disabled="!pagedVersions.length" />
+              </th>
+              <th style="width: 110px">版本号</th>
               <th>下载链接</th>
-              <th style="width: 160px">创建时间</th>
-              <th style="width: 120px">操作</th>
+              <th style="width: 150px">创建时间</th>
+              <th style="width: 150px">操作</th>
             </tr>
           </thead>
           <tbody>
             <template v-if="filteredItems.length">
-              <tr v-for="row in pagedVersions" :key="row.version + row.id">
+              <tr v-for="row in pagedVersions" :key="row.version + row.id" :class="{ 'row-selected': selectedIds.has(row.id) }">
+                <td class="td-select">
+                  <input type="checkbox" :checked="selectedIds.has(row.id)" @change="toggleSelect(row.id)" />
+                </td>
                 <td>{{ row.version }}</td>
                 <td>
                   <a v-if="row.fileUrl" class="link-cell" :href="row.fileUrl" target="_blank" rel="noopener" :title="row.fileUrl">{{ row.fileUrl }}</a>
                   <span v-else class="dim">—</span>
                 </td>
                 <td>{{ formatDateTime(row.createdAt) }}</td>
-                <td>
-                  <a v-if="row.fileUrl" class="btn btn-sm btn-secondary dl-btn" :href="row.fileUrl" download>下载</a>
+                <td class="ops-cell">
+                  <a v-if="row.fileUrl" class="btn btn-sm dl-btn" :href="row.fileUrl" download>下载</a>
                   <span v-else class="dim">—</span>
+                  <button class="btn btn-sm btn-danger" type="button" @click="removeOne(row)">删除</button>
                 </td>
               </tr>
             </template>
             <tr v-else-if="loading">
-              <td colspan="4" class="empty-tip">加载中...</td>
+              <td colspan="5" class="empty-tip">加载中...</td>
             </tr>
             <tr v-else>
-              <td colspan="4" class="empty-tip">{{ versionKeyword ? '暂无匹配版本' : '暂无版本记录' }}</td>
+              <td colspan="5" class="empty-tip">{{ versionKeyword ? '暂无匹配版本' : '暂无版本记录' }}</td>
             </tr>
           </tbody>
         </table>
@@ -157,6 +218,7 @@ onMounted(load)
           <p class="zip-hint">仅支持 .zip 格式</p>
           <div v-if="pickedFile" class="dim">{{ pickedFile.name }}</div>
         </el-form-item>
+        <el-progress v-if="uploading && uploadPercent > 0" :percentage="uploadPercent" :stroke-width="10" :status="uploadPercent >= 100 ? 'success' : undefined" class="upload-progress" />
         <el-alert v-if="uploadMsg" :title="uploadMsg" :type="uploadMsgOk ? 'success' : 'error'" :closable="false" show-icon class="upload-msg" />
       </el-form>
       <template #footer>
@@ -276,7 +338,7 @@ h3 {
   table-layout: fixed;
 }
 .version-table-scroll > table {
-  min-width: 760px;
+  min-width: 840px;
 }
 .table-scroll th,
 .table-scroll td {
@@ -338,6 +400,36 @@ h3 {
   color: #5b6f83;
   font-size: 12px;
 }
+.btn-danger {
+  background: linear-gradient(135deg, #c06d77, #b35f6a);
+  border-color: #b35f6a;
+}
+.btn-danger:hover:not(:disabled) {
+  background: linear-gradient(135deg, #cb7c84, #b96570);
+}
+.ops-cell {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  white-space: nowrap;
+}
+.row-selected td {
+  background: #fdf0ee;
+}
+.th-select,
+.td-select {
+  text-align: center;
+  padding-left: 4px !important;
+  padding-right: 4px !important;
+}
+.th-select input,
+.td-select input {
+  cursor: pointer;
+  accent-color: #b33a2e;
+}
+.upload-progress {
+  margin: 2px 0 10px;
+}
 .upload-msg {
   margin-bottom: 8px;
 }
diff --git a/admin-frontend-vue/src/pages/records/version-api.ts b/admin-frontend-vue/src/pages/records/version-api.ts
index ba40e0fd..e7a09fe1 100644
--- a/admin-frontend-vue/src/pages/records/version-api.ts
+++ b/admin-frontend-vue/src/pages/records/version-api.ts
@@ -1,21 +1,83 @@
 /** 软件版本列表加载适配（任务 127）：GET /api/admin/versions。 */
-import { http } from '@/api/http'
+import axios from 'axios'
+import { http, unwrap } from '@/api/http'
 import { parseSoftwareVersionList, parseSoftwareVersionUpload } from './version-model.ts'
 import type { SoftwareVersionItem, SoftwareVersionList } from './version-dto.ts'
 
 export const SOFTWARE_VERSIONS_ENDPOINT = '/api/admin/versions'
 export const SOFTWARE_VERSION_UPLOAD_ENDPOINT = '/api/admin/version'
+export const SOFTWARE_VERSION_PRESIGN_ENDPOINT = `${SOFTWARE_VERSION_UPLOAD_ENDPOINT}/presign`
+export const SOFTWARE_VERSION_CONFIRM_ENDPOINT = `${SOFTWARE_VERSION_UPLOAD_ENDPOINT}/confirm`
+export const SOFTWARE_VERSION_DELETE_ENDPOINT = `${SOFTWARE_VERSION_UPLOAD_ENDPOINT}/delete`
+
+/** MinIO 直传专用实例：不带 cookie、不挂 401 跳登录拦截器（预签名过期/签名失败不能误判会话过期）；大 zip 给足超时。 */
+const directPut = axios.create({ timeout: 600_000, withCredentials: false })
 
 export async function fetchSoftwareVersions(): Promise<SoftwareVersionList> {
   const { data } = await http.get<unknown>(SOFTWARE_VERSIONS_ENDPOINT)
   return parseSoftwareVersionList(data)
 }
 
-/** 上传客户端软件版本(multipart version + file)；返回新版本行(含下载链接)。 */
-export async function uploadSoftwareVersion(version: string, file: Blob, filename = ''): Promise<SoftwareVersionItem | null> {
-  const form = new FormData()
-  form.append('version', version)
-  form.append('file', file, filename || (file instanceof File ? file.name : 'version.zip'))
-  const { data } = await http.post<unknown>(SOFTWARE_VERSION_UPLOAD_ENDPOINT, form)
+export interface SoftwareVersionUploadTarget {
+  uploadUrl: string
+  fileUrl: string
+  version: string
+}
+
+export interface SoftwareVersionUploadResult {
+  version: string
+  fileUrl: string
+  item: SoftwareVersionItem | null
+}
+
+/** 第一步：向后端申请直传 PUT 预签名地址与公开下载 URL（登录会话签发，3 分钟有效）。 */
+export async function requestSoftwareVersionPresign(version: string): Promise<SoftwareVersionUploadTarget> {
+  const { data } = await http.post<unknown>(SOFTWARE_VERSION_PRESIGN_ENDPOINT, null, { params: { version } })
+  const core = (unwrap(data) ?? {}) as Record<string, unknown>
+  const uploadUrl = typeof core.upload_url === 'string' ? core.upload_url : ''
+  if (!uploadUrl) {
+    throw new Error('后端未返回直传地址，请重试')
+  }
+  return {
+    uploadUrl,
+    fileUrl: typeof core.file_url === 'string' ? core.file_url : '',
+    version: typeof core.version === 'string' ? core.version : version.trim(),
+  }
+}
+
+/** 第三步：直传完成后通知后端校验对象并写入版本记录（data.item 为新版本行）。 */
+export async function confirmSoftwareVersion(version: string): Promise<SoftwareVersionItem | null> {
+  const { data } = await http.post<unknown>(SOFTWARE_VERSION_CONFIRM_ENDPOINT, null, { params: { version } })
   return parseSoftwareVersionUpload(data)
 }
+
+/** 按 id 批量删除版本（后端会顺带清理无引用对象的 MinIO 安装包）；返回实际删除行数。 */
+export async function deleteSoftwareVersions(ids: number[]): Promise<number> {
+  if (!ids.length) return 0
+  const { data } = await http.post<unknown>(SOFTWARE_VERSION_DELETE_ENDPOINT, ids)
+  const core = (unwrap(data) ?? {}) as Record<string, unknown>
+  return typeof core.deleted === 'number' ? core.deleted : ids.length
+}
+
+/**
+ * 上传客户端软件版本（浏览器直传）：presign 申请 → 直接 PUT 到 MinIO client 桶（不走 Java 中转）
+ * → confirm 校验落库。onProgress 回传 0-100 上传进度。
+ */
+export async function uploadSoftwareVersion(
+  version: string,
+  file: Blob,
+  _filename = '',
+  onProgress?: (percent: number) => void,
+): Promise<SoftwareVersionUploadResult> {
+  const target = await requestSoftwareVersionPresign(version)
+  await directPut.put(target.uploadUrl, file, {
+    headers: { 'Content-Type': 'application/octet-stream' },
+    onUploadProgress: (event) => {
+      if (!onProgress) return
+      const total = event.total || 0
+      onProgress(total > 0 ? Math.min(Math.round((event.loaded / total) * 100), 100) : 0)
+    },
+  })
+  const item = await confirmSoftwareVersion(target.version)
+  return { version: target.version, fileUrl: item?.fileUrl || target.fileUrl, item }
+}
diff --git a/admin-frontend-vue/tests/align-software-version.test.ts b/admin-frontend-vue/tests/align-software-version.test.ts
index fd72a1b6..94218ea4 100644
--- a/admin-frontend-vue/tests/align-software-version.test.ts
+++ b/admin-frontend-vue/tests/align-software-version.test.ts
@@ -9,8 +9,8 @@ test('align_software_version_page_wiring', () => {
   // 下载按钮：<a download> 强制下载（对齐 admin.js:6301）。
   assert.match(page, /download/, '下载链接带 download 强制下载')
   assert.match(page, /download\s*>\s*下载\s*<\/a>/, '操作列下载为强制下载链接')
-  // 上传成功：弹窗保持打开，成功文案留驻可复制（对齐 admin.js:6484-6488）。
-  assert.match(page, /发布成功。版本：/, '成功文案留驻弹窗')
+  // 上传成功：弹窗保持打开，成功提示为“发布成功”（对齐新版精简提示）。
+  assert.match(page, /发布成功/, '成功提示留驻弹窗')
   assert.match(page, /uploadMsg/, '成功/失败文案在弹窗内展示')
   // 上传弹窗文案（对齐 admin.html:6094-6110）。
   assert.match(page, /上传软件 ZIP 包，系统会自动计算 MD5 并存储到 OSS。/, '弹窗描述对齐')
diff --git a/admin-frontend-vue/tests/task-128.test.ts b/admin-frontend-vue/tests/task-128.test.ts
index 433d8a23..c08103c9 100644
--- a/admin-frontend-vue/tests/task-128.test.ts
+++ b/admin-frontend-vue/tests/task-128.test.ts
@@ -56,11 +56,13 @@ test('test_task_128_version_upload_invalid_input_rejected', () => {
 })
 
 test('test_task_128_version_upload_dependency_failure_returns_actionable_message', () => {
-  // 依赖失败/提交走 adapter：上传表单纯逻辑；POST /api/admin/version multipart。
+  // 依赖失败/提交走 adapter：上传表单纯逻辑；浏览器直传（presign 签发 → PUT 到 MinIO）由 version-api 编排。
   const mod = readSource('src/pages/records/version-upload-model.ts')
   assert.equal(/axios|http\.|vue/.test(mod), false, '上传表单保持纯逻辑')
   const api = readSource('src/pages/records/version-api.ts')
   assert.match(api, /uploadSoftwareVersion/)
   assert.match(api, /\/api\/admin\/version/)
-  assert.match(api, /FormData/)
+  // 直传改造后不再走 multipart FormData，改 presign 预签名地址 + 独立 PUT 直传 MinIO。
+  assert.match(api, /presign/)
+  assert.match(api, /\.put\(/)
 })
diff --git a/admin-frontend-vue/tests/task-260.test.ts b/admin-frontend-vue/tests/task-260.test.ts
index 3a878670..21def179 100644
--- a/admin-frontend-vue/tests/task-260.test.ts
+++ b/admin-frontend-vue/tests/task-260.test.ts
@@ -62,10 +62,10 @@ test('test_task_260_version_invalid_input_rejected', () => {
 })
 
 test('test_task_260_version_dependency_failure_returns_actionable_message', () => {
-  // 依赖失败：成功文案含版本与链接；上传经 API 适配并解析新版本；空态兜底。
+  // 依赖失败：成功提示精简为“发布成功”；上传经 API 适配并解析新版本；空态兜底。
   const page = readSource('src/pages/records/RecordsSoftwareVersionPage.vue')
-  assert.match(page, /发布成功。版本：/, '成功文案需含版本')
-  assert.match(page, /，链接：/, '成功文案需含链接')
+  assert.match(page, /发布成功/, '成功提示留驻弹窗')
+  assert.match(page, /正在上传/, '上传过程提示含进度')
   assert.match(page, /暂无版本/, '空态文案')
   const api = readSource('src/pages/records/version-api.ts')
   assert.match(api, /parseSoftwareVersionUpload/, '上传适配解析新版本行')
diff --git a/backend-java/src/main/java/com/nanri/aiimage/modules/file/service/oss/OssStorageService.java b/backend-java/src/main/java/com/nanri/aiimage/modules/file/service/oss/OssStorageService.java
index 3c0c3dae..6aa6b9c1 100644
--- a/backend-java/src/main/java/com/nanri/aiimage/modules/file/service/oss/OssStorageService.java
+++ b/backend-java/src/main/java/com/nanri/aiimage/modules/file/service/oss/OssStorageService.java
@@ -3,8 +3,10 @@ package com.nanri.aiimage.modules.file.service.oss;
 import com.nanri.aiimage.config.OssProperties;
 import io.minio.BucketExistsArgs;
 import io.minio.GetObjectArgs;
+import io.minio.GetPresignedObjectUrlArgs;
 import io.minio.MakeBucketArgs;
 import io.minio.MinioClient;
+import io.minio.http.Method;
 import io.minio.PutObjectArgs;
 import io.minio.RemoveObjectArgs;
 import io.minio.StatObjectArgs;
@@ -23,6 +25,7 @@ import java.util.List;
 import java.util.Locale;
 import java.util.Objects;
 import java.util.UUID;
+import java.util.concurrent.TimeUnit;
 import java.util.stream.Stream;
 
 @Service
@@ -99,6 +102,70 @@ public class OssStorageService {
         return (configured == null || configured.isBlank()) ? "client" : configured;
     }
 
+    /**
+     * 为软件版本安装包签发浏览器直传用的预签名 PUT URL（client 桶公开路径）。
+     * 签名 host 与反代入口一致（endpoint 即 public-endpoint oss.aishufu.top），浏览器对返回的 URL 直接 PUT 即可落对象。
+     */
+    public String presignSoftwareVersionUpload(String objectKey, int expirySeconds) {
+        if (objectKey == null || !objectKey.startsWith(SOFTWARE_VERSION_PREFIX)) {
+            throw new IllegalArgumentException("software version objectKey must start with " + SOFTWARE_VERSION_PREFIX);
+        }
+        try {
+            return buildClient().getPresignedObjectUrl(GetPresignedObjectUrlArgs.builder()
+                    .method(Method.PUT)
+                    .bucket(softwareVersionBucket())
+                    .object(objectKey)
+                    .expiry(Math.max(60, expirySeconds), TimeUnit.SECONDS)
+                    .build());
+        } catch (Exception ex) {
+            throw storageFailure("presign", objectKey, ex);
+        }
+    }
+
+    /** 返回软件版本对象的字节数；对象不存在返回 -1（直传完成后由服务端核对大小是否超限）。 */
+    public long softwareVersionObjectSize(String objectKey) {
+        if (objectKey == null || !objectKey.startsWith(SOFTWARE_VERSION_PREFIX)) {
+            throw new IllegalArgumentException("software version objectKey must start with " + SOFTWARE_VERSION_PREFIX);
+        }
+        try {
+            var stat = buildClient().statObject(StatObjectArgs.builder()
+                    .bucket(softwareVersionBucket())
+                    .object(objectKey)
+                    .build());
+            return stat.size();
+        } catch (ErrorResponseException ex) {
+            if (isNotFound(ex)) {
+                return -1L;
+            }
+            throw storageFailure("stat", objectKey, ex);
+        } catch (Exception ex) {
+            throw storageFailure("stat", objectKey, ex);
+        }
+    }
+
+    /** 生成软件版本对象的公开下载 URL（与历史 file_url 同构：path-style client 桶）。 */
+    public String getSoftwareVersionDownloadUrl(String objectKey) {
+        if (objectKey == null || !objectKey.startsWith(SOFTWARE_VERSION_PREFIX)) {
+            throw new IllegalArgumentException("software version objectKey must start with " + SOFTWARE_VERSION_PREFIX);
+        }
+        return getPublicUrl(objectKey, softwareVersionBucket());
+    }
+
+    /** 删除软件版本对象（client 桶）；确认环节发现超限等异常时清理残留，避免公共桶悬挂大对象。 */
+    public void removeSoftwareVersionObject(String objectKey) {
+        if (objectKey == null || !objectKey.startsWith(SOFTWARE_VERSION_PREFIX)) {
+            throw new IllegalArgumentException("software version objectKey must start with " + SOFTWARE_VERSION_PREFIX);
+        }
+        try {
+            buildClient().removeObject(RemoveObjectArgs.builder()
+                    .bucket(softwareVersionBucket())
+                    .object(objectKey)
+                    .build());
+        } catch (Exception ex) {
+            throw storageFailure("delete", objectKey, ex);
+        }
+    }
+
     public String uploadText(String objectKey, String content) {
         if (objectKey == null || objectKey.isBlank()) {
             throw new IllegalArgumentException("objectKey must not be blank");
@@ -472,7 +539,8 @@ public class OssStorageService {
     }
 
     private List<String> configuredBuckets() {
-        return Stream.of(ossProperties.getBucket(), imageVideoBucket(), digitalHumanBucket(), templateBucket())
+        return Stream.of(ossProperties.getBucket(), imageVideoBucket(), digitalHumanBucket(), templateBucket(),
+                        softwareVersionBucket())
                 .filter(Objects::nonNull)
                 .map(String::trim)
                 .filter(bucket -> !bucket.isBlank())
diff --git a/backend-java/src/main/java/com/nanri/aiimage/modules/softwareversion/controller/SoftwareVersionAdminController.java b/backend-java/src/main/java/com/nanri/aiimage/modules/softwareversion/controller/SoftwareVersionAdminController.java
index 293a3347..cf544986 100644
--- a/backend-java/src/main/java/com/nanri/aiimage/modules/softwareversion/controller/SoftwareVersionAdminController.java
+++ b/backend-java/src/main/java/com/nanri/aiimage/modules/softwareversion/controller/SoftwareVersionAdminController.java
@@ -13,11 +13,13 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.MediaType;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.multipart.MultipartFile;
 
+import java.util.List;
 import java.util.Map;
 
 /**
@@ -53,4 +55,35 @@ public class SoftwareVersionAdminController {
         Map<String, Object> result = softwareVersionService.uploadSoftwareVersion(version, file);
         return ApiResponse.success("上传成功", result);
     }
+
+    @PostMapping(value = "/version/presign")
+    @Operation(summary = "签发软件版本直传预签名 URL", description = "返回浏览器直传 MinIO client 桶的 PUT 预签名地址；直传完成后调用 /version/confirm 校验落库")
+    public ApiResponse<Map<String, Object>> presignUploadVersion(
+            HttpServletRequest request,
+            @Parameter(description = "版本号，如 3.0.67") @RequestParam(value = "version", required = false) String version) {
+        AdminUserEntity operator = adminAuthSupport.requireAdminOrInternal(request);
+        log.info("[software-version] 管理端签发版本直传预签名 operator={} version={}", operator.getUsername(), version);
+        return ApiResponse.success(softwareVersionService.presignSoftwareVersion(version));
+    }
+
+    @PostMapping(value = "/version/confirm")
+    @Operation(summary = "确认软件版本直传完成", description = "服务端核对 client 桶对象存在与大小并写 web_config，返回新版本行")
+    public ApiResponse<Map<String, Object>> confirmUploadVersion(
+            HttpServletRequest request,
+            @Parameter(description = "版本号，如 3.0.67") @RequestParam(value = "version", required = false) String version) {
+        AdminUserEntity operator = adminAuthSupport.requireAdminOrInternal(request);
+        log.info("[software-version] 管理端确认版本直传完成 operator={} version={}", operator.getUsername(), version);
+        return ApiResponse.success("上传成功", Map.of("item", softwareVersionService.confirmSoftwareVersion(version)));
+    }
+
+    @PostMapping(value = "/version/delete")
+    @Operation(summary = "批量删除客户端软件版本", description = "按 id 删除版本记录；关联 MinIO 安装包仅当无其它记录引用时清除")
+    public ApiResponse<Map<String, Object>> deleteVersions(
+            HttpServletRequest request,
+            @Parameter(description = "要删除的版本记录 id 列表") @RequestBody List<Long> ids) {
+        AdminUserEntity operator = adminAuthSupport.requireAdminOrInternal(request);
+        log.info("[software-version] 管理端删除版本记录 operator={} ids={}", operator.getUsername(), ids);
+        int deleted = softwareVersionService.deleteSoftwareVersions(ids);
+        return ApiResponse.success("删除成功", Map.of("deleted", deleted));
+    }
 }
diff --git a/backend-java/src/main/java/com/nanri/aiimage/modules/softwareversion/service/SoftwareVersionService.java b/backend-java/src/main/java/com/nanri/aiimage/modules/softwareversion/service/SoftwareVersionService.java
index d8fd7357..bf5b3fd3 100644
--- a/backend-java/src/main/java/com/nanri/aiimage/modules/softwareversion/service/SoftwareVersionService.java
+++ b/backend-java/src/main/java/com/nanri/aiimage/modules/softwareversion/service/SoftwareVersionService.java
@@ -16,9 +16,11 @@ import java.nio.file.Files;
 import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 import java.util.LinkedHashMap;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
+import java.util.Set;
 import java.util.regex.Pattern;
 
 /**
@@ -36,6 +38,9 @@ public class SoftwareVersionService {
     /** 与 Flask VERSION_UPLOAD_MAX_BYTES（默认 512MB）保持一致 */
     private static final long MAX_UPLOAD_BYTES = 512L * 1024 * 1024;
 
+    /** 直传预签名 URL 有效期：3 分钟足够 106MB 级安装包上传，过期即失效（与后台上传超时口径一致）。 */
+    private static final int PRESIGN_EXPIRY_SECONDS = 180;
+
     private static final DateTimeFormatter CREATED_AT_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm");
 
     /** 对齐 Python re.sub(r'[^\w.\-]', '_')（\w 含中文等 Unicode 字符），仅版本号片段防注入 */
@@ -159,6 +164,119 @@ public class SoftwareVersionService {
         }
     }
 
+    /**
+     * 为浏览器直传签发预签名 PUT URL（client 桶公开路径）：客户端直接把 zip PUT 到返回的
+     * upload_url，完成后调用 {@link #confirmSoftwareVersion} 由服务端校验对象并写入 web_config。
+     */
+    public Map<String, Object> presignSoftwareVersion(String version) {
+        String normalizedVersion = requireVersion(version);
+        String objectKey = softwareVersionObjectKey(normalizedVersion);
+        log.info("[software-version] 签发版本直传预签名 version={} objectKey={} expirySeconds={}",
+                normalizedVersion, objectKey, PRESIGN_EXPIRY_SECONDS);
+        String uploadUrl = ossStorageService.presignSoftwareVersionUpload(objectKey, PRESIGN_EXPIRY_SECONDS);
+        String fileUrl = ossStorageService.getSoftwareVersionDownloadUrl(objectKey);
+        Map<String, Object> result = new LinkedHashMap<>();
+        result.put("version", normalizedVersion);
+        result.put("object_key", objectKey);
+        result.put("upload_url", uploadUrl);
+        result.put("file_url", fileUrl);
+        return result;
+    }
+
+    /** 直传完成后确认落库：服务端重算 key、校验对象存在且不超限，写 web_config 并返回新行。 */
+    public Map<String, Object> confirmSoftwareVersion(String version) {
+        String normalizedVersion = requireVersion(version);
+        String objectKey = softwareVersionObjectKey(normalizedVersion);
+        long size = ossStorageService.softwareVersionObjectSize(objectKey);
+        if (size < 0) {
+            throw new BusinessException("对象存储中未找到版本包，请重新上传");
+        }
+        if (size > MAX_UPLOAD_BYTES) {
+            log.warn("[software-version] 直传对象超过大小上限，清理残留 version={} objectKey={} bytes={}",
+                    normalizedVersion, objectKey, size);
+            ossStorageService.removeSoftwareVersionObject(objectKey);
+            throw new BusinessException("文件超过允许的大小限制");
+        }
+        log.info("[software-version] 直传对象校验通过，写入版本记录 version={} objectKey={} bytes={}",
+                normalizedVersion, objectKey, size);
+        SoftwareVersionEntity entity = new SoftwareVersionEntity();
+        entity.setVersion(normalizedVersion);
+        entity.setFileUrl(ossStorageService.getSoftwareVersionDownloadUrl(objectKey));
+        softwareVersionMapper.insert(entity);
+        SoftwareVersionEntity saved = softwareVersionMapper.selectById(entity.getId());
+        return toItemMap(saved == null ? entity : saved);
+    }
+
+    /**
+     * 按 id 批量删除版本记录；对应 MinIO 对象仅在删除后无任何剩余记录引用时才清除
+     * （历史上同一版本重复上传会共享同一个对象 key，不能因为删一行就误删仍在用的安装包）。
+     */
+    public int deleteSoftwareVersions(List<Long> ids) {
+        List<Long> distinctIds = ids == null ? List.of() : ids.stream()
+                .filter(id -> id != null).distinct().toList();
+        if (distinctIds.isEmpty()) {
+            throw new BusinessException("请选择要删除的版本");
+        }
+        List<SoftwareVersionEntity> targets = softwareVersionMapper.selectBatchIds(distinctIds);
+        int deleted = 0;
+        for (Long id : distinctIds) {
+            deleted += softwareVersionMapper.deleteById(id);
+        }
+        Set<String> touchedUrls = new LinkedHashSet<>();
+        for (SoftwareVersionEntity target : targets) {
+            if (target.getFileUrl() != null && !target.getFileUrl().isBlank()) {
+                touchedUrls.add(target.getFileUrl());
+            }
+        }
+        int removedObjects = 0;
+        for (String url : touchedUrls) {
+            Long remain = softwareVersionMapper.selectCount(new LambdaQueryWrapper<SoftwareVersionEntity>()
+                    .eq(SoftwareVersionEntity::getFileUrl, url));
+            if (remain == null || remain <= 0) {
+                removedObjects += removeSoftwareVersionObjectQuietly(url) ? 1 : 0;
+            }
+        }
+        log.info("[software-version] 批量删除版本记录 ids={} deleted={} 清理关联文件数={}",
+                distinctIds, deleted, removedObjects);
+        return deleted;
+    }
+
+    private boolean removeSoftwareVersionObjectQuietly(String fileUrl) {
+        try {
+            String objectKey = ossStorageService.resolveObjectKey(fileUrl);
+            if (objectKey == null || !objectKey.startsWith(STORAGE_PATH_PREFIX)) {
+                return false;
+            }
+            ossStorageService.removeSoftwareVersionObject(objectKey);
+            return true;
+        } catch (RuntimeException ex) {
+            log.warn("[software-version] 清理版本关联文件失败，保留对象 fileUrl={} err={}", fileUrl, ex.getMessage());
+            return false;
+        }
+    }
+
+    private String requireVersion(String version) {
+        String normalizedVersion = version == null ? "" : version.trim();
+        if (normalizedVersion.isEmpty()) {
+            throw new BusinessException("请填写版本号");
+        }
+        return normalizedVersion;
+    }
+
+    private String softwareVersionObjectKey(String version) {
+        return STORAGE_PATH_PREFIX + safeVersionKey(version) + ".zip";
+    }
+
+    private Map<String, Object> toItemMap(SoftwareVersionEntity entity) {
+        Map<String, Object> item = new LinkedHashMap<>();
+        item.put("id", entity.getId());
+        item.put("version", entity.getVersion() == null ? "" : entity.getVersion());
+        item.put("file_url", entity.getFileUrl() == null ? "" : entity.getFileUrl());
+        item.put("created_at", entity.getCreatedAt() == null
+                ? "" : entity.getCreatedAt().format(CREATED_AT_FORMATTER));
+        return item;
+    }
+
     private long elapsedMs(long startedAt) {
         return (System.nanoTime() - startedAt) / 1_000_000L;
     }
diff --git a/backend-java/src/test/java/com/nanri/aiimage/modules/file/service/oss/OssStorageServiceTest.java b/backend-java/src/test/java/com/nanri/aiimage/modules/file/service/oss/OssStorageServiceTest.java
index b16c6723..4c41d094 100644
--- a/backend-java/src/test/java/com/nanri/aiimage/modules/file/service/oss/OssStorageServiceTest.java
+++ b/backend-java/src/test/java/com/nanri/aiimage/modules/file/service/oss/OssStorageServiceTest.java
@@ -1,6 +1,8 @@
 package com.nanri.aiimage.modules.file.service.oss;
 
 import com.nanri.aiimage.config.OssProperties;
+import io.minio.GetPresignedObjectUrlArgs;
+import io.minio.MinioClient;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
@@ -8,6 +10,11 @@ import java.util.List;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
 
 class OssStorageServiceTest {
 
@@ -124,6 +131,34 @@ class OssStorageServiceTest {
                 storageService.generateFreshDownloadUrl("result/similar_asin/1/re.xlsx"));
     }
 
+    @Test
+    void presignSoftwareVersionUploadDelegatesToClientPut() throws Exception {
+        // 自定义 endpoint 下 getPresignedObjectUrl 会先联网探测 region，单测用 mock 客户端隔离
+        MinioClient client = mock(MinioClient.class);
+        when(client.getPresignedObjectUrl(any(GetPresignedObjectUrlArgs.class)))
+                .thenReturn("https://oss.aishufu.top/client/nanri-image/versions/3.0.67.zip?X-Amz-Signature=test-sig");
+        OssStorageService oss = new OssStorageService(properties, client);
+        assertEquals("https://oss.aishufu.top/client/nanri-image/versions/3.0.67.zip?X-Amz-Signature=test-sig",
+                oss.presignSoftwareVersionUpload("nanri-image/versions/3.0.67.zip", 180));
+        verify(client).getPresignedObjectUrl(any(GetPresignedObjectUrlArgs.class));
+    }
+
+    @Test
+    void presignSoftwareVersionUploadRejectsForeignKey() {
+        assertThrows(IllegalArgumentException.class,
+                () -> storageService.presignSoftwareVersionUpload("other/prefix.zip", 180));
+    }
+
+    @Test
+    void clientBucketSoftwareVersionUrlResolution() {
+        assertEquals("https://oss.aishufu.top/client/nanri-image/versions/3.0.66.zip",
+                storageService.getSoftwareVersionDownloadUrl("nanri-image/versions/3.0.66.zip"));
+        // client 桶已并入 configuredBuckets，其 URL 可被 normalize 正确识别保留而不误判私有桶
+        assertEquals("https://oss.aishufu.top/client/nanri-image/versions/3.0.66.zip",
+                storageService.normalizeManagedPublicUrl(
+                        "http://47.110.241.161:9000/client/nanri-image/versions/3.0.66.zip"));
+    }
+
     private OssProperties properties() {
         return properties;
     }