diff --git a/ui/src/api/API_README.md b/ui/src/api/API_README.md
index 7dbcc9005ac..544c24e7d98 100644
--- a/ui/src/api/API_README.md
+++ b/ui/src/api/API_README.md
@@ -697,6 +697,11 @@ Workspace、System 资源管理及 System 共享资源的 `knowledge.ts` 提供
 标签类型统一维护在 `types/knowledge.ts`。创建支持多行，编辑仅支持重命名或单个值修改，
 不声明多行编辑接口，也不组合旧接口模拟多行保存。
 
+`system/resource-management/knowledge/tags.ts` 与 `system/shared-resources/knowledge/tags.ts`
+提供与普通 Workspace 相同的七个标签接口，参数、请求体和返回类型保持一致，仅资源前缀分别为
+`/system/resource/knowledge/<knowledgeId>/tags` 和 `/system/shared/knowledge/<knowledgeId>/tags`，不读取工作空间 ID。
+两套系统标签 API 暂未接入知识库详情 context；Workspace 共享标签 API 保持现有只读查询，不补写入方法。
+
 文档与标签的关联由 `workspace/knowledge/document.ts` 维护，不使用标签删除接口代替取消关联。
 `getDocumentTags(knowledgeId, documentId, query?)` 查询 `document/<documentId>/tags`，返回分组标签，支持 `query.name` 搜索；
 `postAddDocumentTags` POST 到 `document/batch_add_tag`，提交 `{ document_ids, tag_ids }`；
diff --git a/ui/src/api/admin/system/resource-management/knowledge/tags.ts b/ui/src/api/admin/system/resource-management/knowledge/tags.ts
new file mode 100644
index 00000000000..e715356878c
--- /dev/null
+++ b/ui/src/api/admin/system/resource-management/knowledge/tags.ts
@@ -0,0 +1,41 @@
+import { del, get, getExportFile, post, put } from '@/api/admin/core/request'
+import type { Dict, KnowledgeTagGroup, KnowledgeTagPayload, KnowledgeTagUpdatePayload } from '@/api/types'
+
+const getPrefix = (knowledgeId: string) => `/system/resource/knowledge/${knowledgeId}/tags`
+
+/** 获取知识库按标签名称分组的标签选项。 */
+const getKnowledgeTags = (knowledgeId: string, query?: Dict<unknown>) => get<KnowledgeTagGroup[]>(getPrefix(knowledgeId), query)
+
+/** 创建知识库标签或为已有标签新增值。 */
+const postKnowledgeTags = (knowledgeId: string, tags: KnowledgeTagPayload[]) => post<KnowledgeTagPayload[], void>(getPrefix(knowledgeId), tags)
+
+/** 重命名知识库标签或编辑单个标签值。 */
+const putKnowledgeTag = (knowledgeId: string, tagId: string, tag: KnowledgeTagUpdatePayload) =>
+  put<KnowledgeTagUpdatePayload, void>(`${getPrefix(knowledgeId)}/${tagId}`, tag)
+
+/** 删除整个标签分组或单个标签值。 */
+const deleteKnowledgeTag = (knowledgeId: string, tagId: string, type: 'key' | 'one') =>
+  del<undefined, void>(`${getPrefix(knowledgeId)}/${tagId}/${type}`)
+
+/** 批量删除所选标签，直接提交标签 ID 数组。 */
+const putBatchDeleteKnowledgeTags = (knowledgeId: string, tagIds: string[]) => put<string[], void>(`${getPrefix(knowledgeId)}/batch_delete`, tagIds)
+
+/** 导入 Excel 中的知识库标签，重复标签组合由服务端跳过。 */
+const postImportKnowledgeTags = (knowledgeId: string, file: File) => {
+  const data = new FormData()
+  data.append('file', file)
+  return post<FormData, void>(`${getPrefix(knowledgeId)}/import`, data)
+}
+
+/** 下载知识库标签导入模板。 */
+const exportKnowledgeTagTemplate = (knowledgeId: string) => getExportFile('标签模板.xlsx', `${getPrefix(knowledgeId)}/template/export`)
+
+export default {
+  getKnowledgeTags,
+  postKnowledgeTags,
+  putKnowledgeTag,
+  deleteKnowledgeTag,
+  putBatchDeleteKnowledgeTags,
+  postImportKnowledgeTags,
+  exportKnowledgeTagTemplate,
+}
diff --git a/ui/src/api/admin/system/shared-resources/knowledge/tags.ts b/ui/src/api/admin/system/shared-resources/knowledge/tags.ts
new file mode 100644
index 00000000000..fd242938e18
--- /dev/null
+++ b/ui/src/api/admin/system/shared-resources/knowledge/tags.ts
@@ -0,0 +1,41 @@
+import { del, get, getExportFile, post, put } from '@/api/admin/core/request'
+import type { Dict, KnowledgeTagGroup, KnowledgeTagPayload, KnowledgeTagUpdatePayload } from '@/api/types'
+
+const getPrefix = (knowledgeId: string) => `/system/shared/knowledge/${knowledgeId}/tags`
+
+/** 获取知识库按标签名称分组的标签选项。 */
+const getKnowledgeTags = (knowledgeId: string, query?: Dict<unknown>) => get<KnowledgeTagGroup[]>(getPrefix(knowledgeId), query)
+
+/** 创建知识库标签或为已有标签新增值。 */
+const postKnowledgeTags = (knowledgeId: string, tags: KnowledgeTagPayload[]) => post<KnowledgeTagPayload[], void>(getPrefix(knowledgeId), tags)
+
+/** 重命名知识库标签或编辑单个标签值。 */
+const putKnowledgeTag = (knowledgeId: string, tagId: string, tag: KnowledgeTagUpdatePayload) =>
+  put<KnowledgeTagUpdatePayload, void>(`${getPrefix(knowledgeId)}/${tagId}`, tag)
+
+/** 删除整个标签分组或单个标签值。 */
+const deleteKnowledgeTag = (knowledgeId: string, tagId: string, type: 'key' | 'one') =>
+  del<undefined, void>(`${getPrefix(knowledgeId)}/${tagId}/${type}`)
+
+/** 批量删除所选标签，直接提交标签 ID 数组。 */
+const putBatchDeleteKnowledgeTags = (knowledgeId: string, tagIds: string[]) => put<string[], void>(`${getPrefix(knowledgeId)}/batch_delete`, tagIds)
+
+/** 导入 Excel 中的知识库标签，重复标签组合由服务端跳过。 */
+const postImportKnowledgeTags = (knowledgeId: string, file: File) => {
+  const data = new FormData()
+  data.append('file', file)
+  return post<FormData, void>(`${getPrefix(knowledgeId)}/import`, data)
+}
+
+/** 下载知识库标签导入模板。 */
+const exportKnowledgeTagTemplate = (knowledgeId: string) => getExportFile('标签模板.xlsx', `${getPrefix(knowledgeId)}/template/export`)
+
+export default {
+  getKnowledgeTags,
+  postKnowledgeTags,
+  putKnowledgeTag,
+  deleteKnowledgeTag,
+  putBatchDeleteKnowledgeTags,
+  postImportKnowledgeTags,
+  exportKnowledgeTagTemplate,
+}