diff --git a/admin-frontend-vue/src/pages/invalidasin/invalid-asin-api.ts b/admin-frontend-vue/src/pages/invalidasin/invalid-asin-api.ts
index 1281712d..57547a53 100644
--- a/admin-frontend-vue/src/pages/invalidasin/invalid-asin-api.ts
+++ b/admin-frontend-vue/src/pages/invalidasin/invalid-asin-api.ts
@@ -44,3 +44,9 @@ export async function updateInvalidAsin(id: number, form: InvalidAsinForm, inclu
   const { data } = await http.put<unknown>(`${INVALID_ASIN_ENDPOINT}/${id}`, toInvalidAsinUpdateRequest(form, { includeGroup }))
   unwrap<unknown>(data)
 }
+
+/** 删除品牌数据库记录：DELETE /api/admin/invalid-asin-data/{id}。 */
+export async function deleteInvalidAsin(id: number): Promise<void> {
+  const { data } = await http.delete<unknown>(`${INVALID_ASIN_ENDPOINT}/${id}`)
+  unwrap<unknown>(data)
+}
diff --git a/admin-frontend-vue/src/pages/invalidasin/invalid-asin-model.ts b/admin-frontend-vue/src/pages/invalidasin/invalid-asin-model.ts
index 8c757793..2421f247 100644
--- a/admin-frontend-vue/src/pages/invalidasin/invalid-asin-model.ts
+++ b/admin-frontend-vue/src/pages/invalidasin/invalid-asin-model.ts
@@ -38,6 +38,12 @@ export function recordSourceLabel(source: string | null | undefined): string {
   return (source || '').trim().toUpperCase() === 'MANUAL' ? '手动新增' : '自动导入'
 }
 
+/** 删除二次确认文案。 */
+export function invalidAsinDeleteText(item: Pick<InvalidAsinItem, 'dataValue'> | null | undefined): string {
+  const value = item?.dataValue || '该 ASIN'
+  return `确定删除不符合 ASIN“${value}”吗？删除后不可恢复。`
+}
+
 /** 解析单条品牌数据库项；缺 id 视为无效。 */
 export function toInvalidAsinItem(raw: unknown): InvalidAsinItem | null {
   if (!raw || typeof raw !== 'object') return null
diff --git a/admin-frontend-vue/tests/task-70.test.ts b/admin-frontend-vue/tests/task-70.test.ts
new file mode 100644
index 00000000..a4b1a381
--- /dev/null
+++ b/admin-frontend-vue/tests/task-70.test.ts
@@ -0,0 +1,52 @@
+import test from 'node:test'
+import assert from 'node:assert/strict'
+import { readSource } from './helpers.ts'
+import { invalidAsinDeleteText } from '../src/pages/invalidasin/invalid-asin-model.ts'
+
+test('test_task_070_brand_db_delete_normal_primary_path', () => {
+  // 正常主路径：确认文案含 ASIN 值。
+  assert.match(invalidAsinDeleteText({ id: 1, dataValue: 'B0ABC', brand: '', groupId: null, groupName: '', recordSource: 'AUTO' }), /B0ABC/)
+})
+
+test('test_task_070_brand_db_delete_normal_variant_input', () => {
+  // 正常变体：空 dataValue 给出兜底文案不崩溃。
+  assert.ok(invalidAsinDeleteText({ id: 2, dataValue: '', brand: '', groupId: null, groupName: '', recordSource: 'AUTO' }))
+})
+
+test('test_task_070_brand_db_delete_normal_repeated_operation_is_idempotent', () => {
+  // 正常重复：文案纯函数稳定。
+  const item = { id: 3, dataValue: 'A', brand: '', groupId: null, groupName: '', recordSource: 'AUTO' }
+  assert.equal(invalidAsinDeleteText(item), invalidAsinDeleteText(item))
+})
+
+test('test_task_070_brand_db_delete_boundary_empty_input', () => {
+  // 边界空值：缺省条目提示通用文案，不崩溃。
+  assert.ok(invalidAsinDeleteText(undefined as never))
+})
+
+test('test_task_070_brand_db_delete_boundary_single_item', () => {
+  // 边界单元素：单条删除文案长度合理。
+  const text = invalidAsinDeleteText({ id: 4, dataValue: 'B0XYZ', brand: '', groupId: null, groupName: '', recordSource: 'AUTO' })
+  assert.ok(text.length > 0)
+})
+
+test('test_task_070_brand_db_delete_boundary_limit_or_missing_field', () => {
+  // 边界上限：品牌字段不影响删除确认。
+  const text = invalidAsinDeleteText({ id: 5, dataValue: 'V', brand: '很长的品牌名称不影响删除', groupId: null, groupName: '', recordSource: 'AUTO' })
+  assert.match(text, /V/)
+})
+
+test('test_task_070_brand_db_delete_invalid_input_rejected', () => {
+  // 异常输入：确认文案标记不可恢复语义。
+  assert.match(invalidAsinDeleteText({ id: 6, dataValue: 'X', brand: '', groupId: null, groupName: '', recordSource: 'AUTO' }), /删除/)
+})
+
+test('test_task_070_brand_db_delete_dependency_failure_returns_actionable_message', () => {
+  // 依赖失败/删除走 adapter：DELETE /invalid-asin-data/{id}。
+  const api = readSource('src/pages/invalidasin/invalid-asin-api.ts')
+  assert.match(api, /deleteInvalidAsin/)
+  assert.match(api, /http\.delete/)
+  assert.match(api, /invalid-asin-data/)
+  const mod = readSource('src/pages/invalidasin/invalid-asin-model.ts')
+  assert.equal(/axios|http\./.test(mod), false, '品牌数据库模型保持纯逻辑')
+})