diff --git a/admin-frontend-vue/src/api/user-secrets.ts b/admin-frontend-vue/src/api/user-secrets.ts
index 411ca0a4..cf6ea108 100644
--- a/admin-frontend-vue/src/api/user-secrets.ts
+++ b/admin-frontend-vue/src/api/user-secrets.ts
@@ -21,6 +21,8 @@ export interface AdminUserSecretRow {
   username: string
   /** 所属数据权限分组名（可能多个）。 */
   groups: string[]
+  /** 所属主管（创建人）用户名；无分组时的兜底展示。 */
+  leaderUsername: string
   similarAsin: AdminUserSecretModule
   appearancePatent: AdminUserSecretModule
   proxy: AdminUserSecretModule
diff --git a/admin-frontend-vue/src/pages/account/UserSecretsPage.vue b/admin-frontend-vue/src/pages/account/UserSecretsPage.vue
index 2bfa01ad..293725c0 100644
--- a/admin-frontend-vue/src/pages/account/UserSecretsPage.vue
+++ b/admin-frontend-vue/src/pages/account/UserSecretsPage.vue
@@ -82,6 +82,13 @@ function moduleTooltip(module: AdminUserSecretModule | undefined) {
   return parts.join('；') || '暂无检测记录'
 }
 
+/** 分组列文案：优先分组名；未建分组的用户回退展示所属主管，便于判断归属。 */
+function groupTextOf(row: AdminUserSecretRow) {
+  if (row.groups?.length) return row.groups.join('、')
+  if (row.leaderUsername) return `${row.leaderUsername}（未建分组）`
+  return '—'
+}
+
 function rowStatusTooltip(row: AdminUserSecretRow) {
   const parts: string[] = []
   if (row.statusMessage) parts.push(row.statusMessage)
@@ -231,7 +238,7 @@ onMounted(load)
                   <span class="user-name">{{ row.username || '—' }}</span>
                 </td>
                 <td>
-                  <span class="creator-name">{{ row.groups?.length ? row.groups.join('、') : '—' }}</span>
+                  <span class="creator-name">{{ groupTextOf(row) }}</span>
                 </td>
                 <td>
                   <div class="module-cell">
diff --git a/backend-java/src/main/java/com/nanri/aiimage/modules/shopkey/mapper/ShopManageGroupMapper.java b/backend-java/src/main/java/com/nanri/aiimage/modules/shopkey/mapper/ShopManageGroupMapper.java
index 8a9f625e..fa3dd509 100644
--- a/backend-java/src/main/java/com/nanri/aiimage/modules/shopkey/mapper/ShopManageGroupMapper.java
+++ b/backend-java/src/main/java/com/nanri/aiimage/modules/shopkey/mapper/ShopManageGroupMapper.java
@@ -103,13 +103,18 @@ public interface ShopManageGroupMapper extends BaseMapper<ShopManageGroupEntity>
             """)
     List<Long> selectUserIdsByGroupIds(@Param("groupIds") List<Long> groupIds);
 
-    /** 批量查用户所属分组名（密钥管理列表「分组」列展示用）。 */
+    /**
+     * 批量查用户所属分组名：分组归属按「分组的创建人(created_by_id/user_id) = 用户的创建人」判定，
+     * 即主管名下的子账户归入该主管创建的分组（成员表 biz_shop_manage_group_member 生产上基本未使用）。
+     */
     @Select("""
             <script>
-            SELECT gm.user_id AS userId, g.group_name AS groupName
-            FROM biz_shop_manage_group_member gm
-            INNER JOIN biz_shop_manage_group g ON g.id = gm.group_id
-            WHERE gm.user_id IN
+            SELECT u.id AS userId, g.group_name AS groupName
+            FROM users u
+            INNER JOIN biz_shop_manage_group g
+                ON g.created_by_id = u.created_by_id OR g.user_id = u.created_by_id
+            WHERE u.created_by_id IS NOT NULL
+              AND u.id IN
             <foreach collection='userIds' item='userId' open='(' separator=',' close=')'>
                 #{userId}
             </foreach>
@@ -119,6 +124,17 @@ public interface ShopManageGroupMapper extends BaseMapper<ShopManageGroupEntity>
     List<com.nanri.aiimage.modules.shopkey.model.dto.UserGroupRef> selectGroupNamesByUserIds(
             @Param("userIds") List<Long> userIds);
 
+    /** 某分组下的用户：该分组创建人（组长）本人 + 其名下子账户。 */
+    @Select("""
+            SELECT u.id AS userId
+            FROM users u
+            INNER JOIN biz_shop_manage_group g ON g.id = #{groupId}
+            WHERE u.id = COALESCE(g.created_by_id, g.user_id)
+               OR u.created_by_id = COALESCE(g.created_by_id, g.user_id)
+            ORDER BY u.id ASC
+            """)
+    List<Long> selectUserIdsByGroupId(@Param("groupId") Long groupId);
+
     /** 某人作为组长（创建人）的分组（密钥管理等按组隔离场景用）。 */
     @Select("""
             SELECT g.id AS id, g.group_name AS groupName
diff --git a/backend-java/src/main/java/com/nanri/aiimage/modules/usersecret/model/vo/AdminUserSecretRowVo.java b/backend-java/src/main/java/com/nanri/aiimage/modules/usersecret/model/vo/AdminUserSecretRowVo.java
index 690ec70b..89ba1805 100644
--- a/backend-java/src/main/java/com/nanri/aiimage/modules/usersecret/model/vo/AdminUserSecretRowVo.java
+++ b/backend-java/src/main/java/com/nanri/aiimage/modules/usersecret/model/vo/AdminUserSecretRowVo.java
@@ -19,6 +19,9 @@ public class AdminUserSecretRowVo {
     @Schema(description = "所属分组名（数据权限分组，可能多个）")
     private List<String> groups;
 
+    @Schema(description = "所属主管（创建人）用户名；无分组时的兜底展示")
+    private String leaderUsername;
+
     @Schema(description = "货源查询密钥")
     private AdminUserSecretModuleVo similarAsin;
 
diff --git a/backend-java/src/main/java/com/nanri/aiimage/modules/usersecret/service/UserApiSecretService.java b/backend-java/src/main/java/com/nanri/aiimage/modules/usersecret/service/UserApiSecretService.java
index bc3d5826..659e64e4 100644
--- a/backend-java/src/main/java/com/nanri/aiimage/modules/usersecret/service/UserApiSecretService.java
+++ b/backend-java/src/main/java/com/nanri/aiimage/modules/usersecret/service/UserApiSecretService.java
@@ -213,41 +213,40 @@ public class UserApiSecretService {
 
         boolean superAdmin = "super_admin".equals(adminAuthSupport.currentRole(operator));
         Long requestedGroupId = safeQuery.getGroupId();
-        List<Long> ledGroupIds = superAdmin ? List.of() : listLedGroupIds(operator.getId());
-        // 组隔离：主管强制锁定自己带的分组；超管按 group_id 筛选（空 = 全部）。
-        List<Long> scopedGroupIds;
+        // 组隔离：主管强制锁定自己带的分组（组长本人 + 名下子账户）；超管按 group_id 筛选（空 = 全部）。
+        List<Long> scopedUserIds = null;
         if (superAdmin) {
-            scopedGroupIds = requestedGroupId != null && requestedGroupId > 0 ? List.of(requestedGroupId) : null;
-        } else {
-            if (ledGroupIds.isEmpty()) {
-                log.info("[user-secret] 后台密钥列表：主管未带任何分组，返回空 operatorId={}", operator.getId());
-                return emptyPageWithGroups(page, pageSize, List.of());
+            if (requestedGroupId != null && requestedGroupId > 0) {
+                scopedUserIds = adminGroupMapper.selectUserIdsByGroupId(requestedGroupId);
+            }
+        } else {
+            scopedUserIds = resolveLedGroupMemberIds(operator.getId());
+            if (scopedUserIds.isEmpty()) {
+                log.info("[user-secret] 后台密钥列表：主管名下无子账户，返回空 operatorId={}", operator.getId());
+                return emptyPageWithGroups(page, pageSize, groupOptions(operator, false));
             }
-            scopedGroupIds = ledGroupIds;
         }
+        List<Long> ledGroupIds = superAdmin ? List.of() : listLedGroupIds(operator.getId());
 
         LambdaQueryWrapper<UserApiSecretEntity> wrapper = new LambdaQueryWrapper<>();
         String keyword = normalize(safeQuery.getKeyword());
-        if (!keyword.isEmpty() || scopedGroupIds != null) {
-            // 分组圈定成员用户（含组长本人）；再叠加用户名关键字。
-            List<Long> allowedUserIds = scopedGroupIds == null
-                    ? new ArrayList<>()
-                    : new ArrayList<>(adminGroupMapper.selectUserIdsByGroupIds(scopedGroupIds));
+        if (!keyword.isEmpty() || scopedUserIds != null) {
+            List<Long> allowedUserIds = scopedUserIds == null ? null : new ArrayList<>(scopedUserIds);
             if (!keyword.isEmpty()) {
                 List<Long> matched = adminUserMapper.selectList(new LambdaQueryWrapper<AdminUserEntity>()
                                 .like(AdminUserEntity::getUsername, keyword)
                                 .last("limit 200"))
                         .stream().map(AdminUserEntity::getId).filter(id -> id != null).toList();
-                if (scopedGroupIds == null) {
+                if (allowedUserIds == null) {
                     allowedUserIds = new ArrayList<>(matched);
                 } else {
                     allowedUserIds.retainAll(matched);
                 }
             }
-            if (allowedUserIds.isEmpty()) {
-                log.info("[user-secret] 后台密钥列表无匹配用户 keyword={} groupIds={} operatorId={} role={}",
-                        keyword, scopedGroupIds, operator.getId(), superAdmin ? "super_admin" : "admin");
-                return emptyPageWithGroups(page, pageSize, groupOptions(operator, superAdmin, ledGroupIds));
+            if (allowedUserIds == null || allowedUserIds.isEmpty()) {
+                log.info("[user-secret] 后台密钥列表无匹配用户 keyword={} groupId={} operatorId={} role={}",
+                        keyword, requestedGroupId, operator.getId(), superAdmin ? "super_admin" : "admin");
+                return emptyPageWithGroups(page, pageSize, groupOptions(operator, superAdmin));
             }
             wrapper.in(UserApiSecretEntity::getUserId, allowedUserIds);
         }
@@ -284,12 +283,37 @@ public class UserApiSecretService {
         vo.setTotal(total);
         vo.setPage(page);
         vo.setPageSize(pageSize);
-        vo.setGroupOptions(groupOptions(operator, superAdmin, ledGroupIds));
-        log.info("[user-secret] 后台密钥列表 keyword={} statusFilter={} groupIds={} role={} 聚合用户数={} 本页返回={}",
-                keyword, statusFilter, scopedGroupIds, superAdmin ? "super_admin" : "admin", total, pageItems.size());
+        vo.setGroupOptions(groupOptions(operator, superAdmin));
+        log.info("[user-secret] 后台密钥列表 keyword={} statusFilter={} groupId={} role={} 聚合用户数={} 本页返回={}",
+                keyword, statusFilter, requestedGroupId, superAdmin ? "super_admin" : "admin", total, pageItems.size());
         return vo;
     }
 
+    /** 主管可见用户：自己 + 自己带的分组下的子账户（名下 users.created_by_id=自己）。 */
+    private List<Long> resolveLedGroupMemberIds(Long operatorId) {
+        if (operatorId == null) {
+            return List.of();
+        }
+        List<Long> ledGroupIds = listLedGroupIds(operatorId);
+        Set<Long> userIds = new LinkedHashSet<>();
+        for (Long groupId : ledGroupIds) {
+            userIds.addAll(adminGroupMapper.selectUserIdsByGroupId(groupId));
+        }
+        // 没有分组记录的主管（历史数据）回退按「名下子账户」兜底，避免整个页面空白。
+        if (userIds.isEmpty()) {
+            adminUserMapper.selectList(new LambdaQueryWrapper<AdminUserEntity>()
+                            .eq(AdminUserEntity::getCreatedById, operatorId)
+                            .last("limit 2000"))
+                    .forEach(user -> {
+                        if (user.getId() != null) {
+                            userIds.add(user.getId());
+                        }
+                    });
+        }
+        userIds.add(operatorId);
+        return new ArrayList<>(userIds);
+    }
+
     /** 主管带的分组 ID（created_by_id / user_id = 自己）。 */
     private List<Long> listLedGroupIds(Long operatorId) {
         if (operatorId == null) {
@@ -301,24 +325,18 @@ public class UserApiSecretService {
                 .toList();
     }
 
-    /** 分组筛选项：超管=全部；主管=自己带的分组（没有则不展示下拉）。 */
-    private List<AdminUserSecretPageVo.GroupOptionVo> groupOptions(
-            AdminUserEntity operator, boolean superAdmin, List<Long> ledGroupIds) {
-        List<ShopManageGroupEntity> groups;
-        if (superAdmin) {
-            groups = adminGroupMapper.selectAllGroups();
-        } else if (ledGroupIds.isEmpty()) {
-            return List.of();
-        } else {
-            groups = adminGroupMapper.selectLedGroups(operator.getId());
-        }
+    /** 分组筛选项：超管=全部；主管=自己带的分组。 */
+    private List<AdminUserSecretPageVo.GroupOptionVo> groupOptions(AdminUserEntity operator, boolean superAdmin) {
+        List<ShopManageGroupEntity> groups = superAdmin
+                ? adminGroupMapper.selectAllGroups()
+                : adminGroupMapper.selectLedGroups(operator.getId());
         return groups.stream()
                 .filter(group -> group.getId() != null)
                 .map(group -> new AdminUserSecretPageVo.GroupOptionVo(group.getId(), group.getGroupName()))
                 .toList();
     }
 
-    /** 本页行补「所属分组」：一次批量查询，避免逐行查库。 */
+    /** 本页行补「分组」：一次批量查询；无分组记录的用户回退展示所属主管用户名。 */
     private void fillRowGroups(List<AdminUserSecretRowVo> pageItems) {
         List<Long> userIds = pageItems.stream()
                 .map(AdminUserSecretRowVo::getUserId)
@@ -338,8 +356,39 @@ public class UserApiSecretService {
             }
             byUser.computeIfAbsent(ref.getUserId(), key -> new ArrayList<>()).add(name);
         }
+        // 无分组行的兜底：批量取「用户→创建人」，再批量取创建人用户名（全程两次查询）。
+        Map<Long, Long> userToLeader = new LinkedHashMap<>();
+        Set<Long> leaderIds = new LinkedHashSet<>();
+        Map<Long, String> leadersOfEmpty = new LinkedHashMap<>();
         for (AdminUserSecretRowVo item : pageItems) {
             item.setGroups(byUser.getOrDefault(item.getUserId(), List.of()));
+            if (!item.getGroups().isEmpty()) {
+                continue;
+            }
+            leadersOfEmpty.put(item.getUserId(), "");
+        }
+        if (!leadersOfEmpty.isEmpty()) {
+            for (AdminUserEntity user : adminUserMapper.selectBatchIds(leadersOfEmpty.keySet())) {
+                if (user.getId() != null && user.getCreatedById() != null) {
+                    userToLeader.put(user.getId(), user.getCreatedById());
+                    leaderIds.add(user.getCreatedById());
+                }
+            }
+        }
+        if (leaderIds.isEmpty()) {
+            return;
+        }
+        Map<Long, String> leaderNames = new HashMap<>();
+        for (AdminUserEntity leader : adminUserMapper.selectBatchIds(leaderIds)) {
+            if (leader.getId() != null) {
+                leaderNames.put(leader.getId(), normalize(leader.getUsername()));
+            }
+        }
+        for (AdminUserSecretRowVo item : pageItems) {
+            Long leaderId = userToLeader.get(item.getUserId());
+            if (leaderId != null) {
+                item.setLeaderUsername(leaderNames.getOrDefault(leaderId, ""));
+            }
         }
     }
 
diff --git a/backend-java/src/test/java/com/nanri/aiimage/modules/usersecret/service/UserApiSecretServiceTest.java b/backend-java/src/test/java/com/nanri/aiimage/modules/usersecret/service/UserApiSecretServiceTest.java
index 0480e395..f77c09de 100644
--- a/backend-java/src/test/java/com/nanri/aiimage/modules/usersecret/service/UserApiSecretServiceTest.java
+++ b/backend-java/src/test/java/com/nanri/aiimage/modules/usersecret/service/UserApiSecretServiceTest.java
@@ -249,13 +249,14 @@ class UserApiSecretServiceTest {
         UserApiSecretService service = newService();
         AdminUserEntity operator = new AdminUserEntity();
         operator.setId(88L);
-        // 主管未带任何分组 → 直接空页，不查密钥表。
+        // 主管既无分组、也名下无子账户 → 只剩自己一行（无密钥记录则空页）。
         when(adminGroupMapper.selectLedGroups(88L)).thenReturn(List.of());
+        when(adminUserMapper.selectList(any())).thenReturn(List.of());
 
         var page = service.adminPage(operator, new AdminUserSecretQuery());
 
         assertThat(page.getItems()).isEmpty();
-        verify(mapper, never()).selectList(any());
+        assertThat(page.getGroupOptions()).isEmpty();
     }
 
     @Test
@@ -267,20 +268,50 @@ class UserApiSecretServiceTest {
         group.setId(5L);
         group.setGroupName("一组");
         when(adminGroupMapper.selectLedGroups(88L)).thenReturn(List.of(group));
-        when(adminGroupMapper.selectUserIdsByGroupIds(any())).thenReturn(List.of(1L));
+        when(adminGroupMapper.selectUserIdsByGroupId(5L)).thenReturn(List.of(1L, 88L));
         when(mapper.selectList(any())).thenReturn(List.of(row(1L, "similar-asin", "enc:sk-1", "passed")));
         AdminUserEntity user = new AdminUserEntity();
         user.setId(1L);
         user.setUsername("张三");
         when(adminUserMapper.selectById(1L)).thenReturn(user);
-        when(adminGroupMapper.selectGroupNamesByUserIds(any())).thenReturn(List.of());
+        UserGroupRef ref = new UserGroupRef();
+        ref.setUserId(1L);
+        ref.setGroupName("一组");
+        when(adminGroupMapper.selectGroupNamesByUserIds(any())).thenReturn(List.of(ref));
 
         var page = service.adminPage(operator, new AdminUserSecretQuery());
 
         assertThat(page.getItems()).hasSize(1);
+        assertThat(page.getItems().get(0).getGroups()).containsExactly("一组");
         assertThat(page.getGroupOptions()).extracting(com.nanri.aiimage.modules.usersecret.model.vo.AdminUserSecretPageVo.GroupOptionVo::groupName)
                 .containsExactly("一组");
-        verify(adminGroupMapper).selectUserIdsByGroupIds(any());
+        verify(adminGroupMapper).selectUserIdsByGroupId(5L);
+    }
+
+    @Test
+    void adminPageFallsBackToLeaderUsernameWhenNoGroup() {
+        UserApiSecretService service = newService();
+        AdminUserEntity operator = new AdminUserEntity();
+        operator.setId(88L);
+        when(adminAuthSupport.currentRole(operator)).thenReturn("super_admin");
+        when(mapper.selectList(any())).thenReturn(List.of(row(1L, "similar-asin", "enc:sk-1", "passed")));
+        AdminUserEntity user = new AdminUserEntity();
+        user.setId(1L);
+        user.setUsername("张三");
+        user.setCreatedById(99L);
+        when(adminUserMapper.selectById(1L)).thenReturn(user);
+        when(adminGroupMapper.selectGroupNamesByUserIds(any())).thenReturn(List.of());
+        AdminUserEntity leader = new AdminUserEntity();
+        leader.setId(99L);
+        leader.setUsername("主管甲");
+        when(adminUserMapper.selectBatchIds(any())).thenReturn(List.of(user, leader));
+        when(adminGroupMapper.selectAllGroups()).thenReturn(List.of());
+
+        var page = service.adminPage(operator, new AdminUserSecretQuery());
+
+        assertThat(page.getItems()).hasSize(1);
+        assertThat(page.getItems().get(0).getGroups()).isEmpty();
+        assertThat(page.getItems().get(0).getLeaderUsername()).isEqualTo("主管甲");
     }
 
     @Test
@@ -289,7 +320,7 @@ class UserApiSecretServiceTest {
         AdminUserEntity operator = new AdminUserEntity();
         operator.setId(88L);
         when(adminAuthSupport.currentRole(operator)).thenReturn("super_admin");
-        when(adminGroupMapper.selectUserIdsByGroupIds(List.of(5L))).thenReturn(List.of());
+        when(adminGroupMapper.selectUserIdsByGroupId(5L)).thenReturn(List.of());
         when(adminGroupMapper.selectAllGroups()).thenReturn(List.of());
 
         AdminUserSecretQuery query = new AdminUserSecretQuery();
@@ -297,7 +328,7 @@ class UserApiSecretServiceTest {
         var page = service.adminPage(operator, query);
 
         assertThat(page.getItems()).isEmpty();
-        verify(adminGroupMapper).selectUserIdsByGroupIds(List.of(5L));
+        verify(adminGroupMapper).selectUserIdsByGroupId(5L);
     }
 
     @Test