diff --git a/apps/knowledge/serializers/document.py b/apps/knowledge/serializers/document.py
index ee532a16e..6cacf727e 100644
--- a/apps/knowledge/serializers/document.py
+++ b/apps/knowledge/serializers/document.py
@@ -28,6 +28,7 @@ from common.db.search import native_search, get_dynamics_model, native_page_sear
 from common.event import ListenerManagement
 from common.event.common import work_thread_pool
 from common.exception.app_exception import AppApiException
+from common.field.common import UploadedFileField
 from common.handle.impl.qa.csv_parse_qa_handle import CsvParseQAHandle
 from common.handle.impl.qa.xls_parse_qa_handle import XlsParseQAHandle
 from common.handle.impl.qa.xlsx_parse_qa_handle import XlsxParseQAHandle
@@ -1503,6 +1504,38 @@ class DocumentSerializers(serializers.Serializer):
                 tag_id__in=tag_ids
             ).delete()
 
+    class ReplaceSourceFile(serializers.Serializer):
+        workspace_id = serializers.CharField(required=True, label=_('workspace id'))
+        knowledge_id = serializers.UUIDField(required=True, label=_('knowledge id'))
+        document_id = serializers.UUIDField(required=True, label=_('document id'))
+        file = UploadedFileField(required=True, label=_("file"))
+
+        def is_valid(self, *, raise_exception=False):
+            super().is_valid(raise_exception=True)
+            workspace_id = self.data.get('workspace_id')
+            query_set = QuerySet(Knowledge).filter(id=self.data.get('knowledge_id'))
+            if workspace_id and workspace_id != 'None':
+                query_set = query_set.filter(workspace_id=workspace_id)
+            if not query_set.exists():
+                raise AppApiException(500, _('Knowledge id does not exist'))
+            if not QuerySet(Document).filter(
+                    id=self.data.get('document_id'),
+                    knowledge_id=self.data.get('knowledge_id')
+            ).exists():
+                raise AppApiException(500, _('Document id does not exist'))
+
+        def replace(self):
+            self.is_valid(raise_exception=True)
+            file = self.data.get('file')
+            source_file = QuerySet(File).filter(source_id=self.data.get('document_id')).first()
+
+            if not source_file:
+                raise AppApiException(500, _('Source file not found'))
+
+            source_file.save(file.read())
+
+            return True
+
 
 class FileBufferHandle:
     buffer = None
diff --git a/apps/knowledge/urls.py b/apps/knowledge/urls.py
index e5776da30..3b41be1e9 100644
--- a/apps/knowledge/urls.py
+++ b/apps/knowledge/urls.py
@@ -46,6 +46,7 @@ urlpatterns = [
     path('workspace/<str:workspace_id>/knowledge/<str:knowledge_id>/document/<str:document_id>/export', views.DocumentView.Export.as_view()),
     path('workspace/<str:workspace_id>/knowledge/<str:knowledge_id>/document/<str:document_id>/export_zip', views.DocumentView.ExportZip.as_view()),
     path('workspace/<str:workspace_id>/knowledge/<str:knowledge_id>/document/<str:document_id>/download_source_file', views.DocumentView.DownloadSourceFile.as_view()),
+    path('workspace/<str:workspace_id>/knowledge/<str:knowledge_id>/document/<str:document_id>/replace_source_file', views.DocumentView.ReplaceSourceFile.as_view()),
     path('workspace/<str:workspace_id>/knowledge/<str:knowledge_id>/document/<str:document_id>/tags', views.DocumentView.Tags.as_view()),
     path('workspace/<str:workspace_id>/knowledge/<str:knowledge_id>/document/<str:document_id>/tags/batch_delete', views.DocumentView.Tags.BatchDelete.as_view()),
     path('workspace/<str:workspace_id>/knowledge/<str:knowledge_id>/document/<str:document_id>/paragraph', views.ParagraphView.as_view()),
diff --git a/apps/knowledge/views/document.py b/apps/knowledge/views/document.py
index 558d2ccb1..a63883856 100644
--- a/apps/knowledge/views/document.py
+++ b/apps/knowledge/views/document.py
@@ -686,6 +686,31 @@ class DocumentView(APIView):
                 'workspace_id': workspace_id, 'document_id': document_id, 'knowledge_id': knowledge_id
             }).download_source_file()
 
+    class ReplaceSourceFile(APIView):
+        authentication_classes = [TokenAuth]
+
+        @extend_schema(
+            summary=_('Replace source file'),
+            operation_id=_('Replace source file'),  # type: ignore
+            parameters=DocumentDownloadSourceAPI.get_parameters(),
+            responses=DocumentDownloadSourceAPI.get_response(),
+            tags=[_('Knowledge Base/Documentation')]  # type: ignore
+        )
+        @has_permissions(
+            PermissionConstants.KNOWLEDGE_DOCUMENT_EDIT.get_workspace_knowledge_permission(),
+            PermissionConstants.KNOWLEDGE_DOCUMENT_EDIT.get_workspace_permission_workspace_manage_role(),
+            RoleConstants.WORKSPACE_MANAGE.get_workspace_role(),
+            ViewPermission([RoleConstants.USER.get_workspace_role()],
+                           [PermissionConstants.KNOWLEDGE.get_workspace_knowledge_permission()], CompareConstants.AND),
+        )
+        def post(self, request: Request, workspace_id: str, knowledge_id: str, document_id: str):
+            return result.success(DocumentSerializers.ReplaceSourceFile(data={
+                'workspace_id': workspace_id,
+                'document_id': document_id,
+                'knowledge_id': knowledge_id,
+                'file': request.FILES.get('file')
+            }).replace())
+
     class Tags(APIView):
         authentication_classes = [TokenAuth]
 
diff --git a/ui/src/api/knowledge/document.ts b/ui/src/api/knowledge/document.ts
index a4dad8944..86587b8b1 100644
--- a/ui/src/api/knowledge/document.ts
+++ b/ui/src/api/knowledge/document.ts
@@ -144,6 +144,14 @@ const getDownloadSourceFile: (knowledge_id: string, document_id: string, documen
   return exportFile(document_name, `${prefix.value}/${knowledge_id}/document/${document_id}/download_source_file`, {}, undefined)
 }
 
+const postReplaceSourceFile: (knowledge_id: string, document_id: string, data: any) => Promise<Result<any>> = (
+  knowledge_id,
+  document_id,
+  data,
+) => {
+  return post(`${prefix.value}/${knowledge_id}/document/${document_id}/replace_source_file`, data, {}, undefined)
+}
+
 /**
  * 导出文档
  * @param document_name 文档名称
@@ -608,6 +616,7 @@ export default {
   putBatchCancelTask,
   putCancelTask,
   getDownloadSourceFile,
+  postReplaceSourceFile,
   exportDocument,
   exportDocumentZip,
   putDocumentRefresh,
diff --git a/ui/src/locales/lang/en-US/views/document.ts b/ui/src/locales/lang/en-US/views/document.ts
index a13e4159b..ed01e8da6 100644
--- a/ui/src/locales/lang/en-US/views/document.ts
+++ b/ui/src/locales/lang/en-US/views/document.ts
@@ -14,6 +14,7 @@ export default {
     cancelGenerate: 'Cancel Generation',
     export: 'Export to',
     download: 'Download',
+    replace: 'Replace',
   },
 
   tip: {
diff --git a/ui/src/locales/lang/zh-CN/views/document.ts b/ui/src/locales/lang/zh-CN/views/document.ts
index 7b129ad99..76b74dad6 100644
--- a/ui/src/locales/lang/zh-CN/views/document.ts
+++ b/ui/src/locales/lang/zh-CN/views/document.ts
@@ -14,6 +14,7 @@ export default {
     cancelGenerate: '取消生成',
     export: '导出',
     download: '下载原文档',
+    replace: '替换原文档',
   },
   tip: {
     saveMessage: '当前的更改尚未保存，确认退出吗?',
diff --git a/ui/src/locales/lang/zh-Hant/views/document.ts b/ui/src/locales/lang/zh-Hant/views/document.ts
index 0295ad160..9e0a768ed 100644
--- a/ui/src/locales/lang/zh-Hant/views/document.ts
+++ b/ui/src/locales/lang/zh-Hant/views/document.ts
@@ -14,6 +14,7 @@ export default {
     cancelGenerate: '取消生成',
     export: '匯出',
     download: '下載原文件',
+    replace: '替換原文件',
   },
   tip: {
     saveMessage: '當前的更改尚未保存，確認退出嗎?',
diff --git a/ui/src/views/document/index.vue b/ui/src/views/document/index.vue
index 9d1e9e830..16f0393eb 100644
--- a/ui/src/views/document/index.vue
+++ b/ui/src/views/document/index.vue
@@ -494,6 +494,21 @@
                             </el-icon>
                             {{ $t('views.document.setting.download') }}
                           </el-dropdown-item>
+                          <el-upload
+                            ref="elUploadRef"
+                            :file-list="[]"
+                            action="#"
+                            :auto-upload="false"
+                            :show-file-list="false"
+                            :on-change="(file: any, fileList: any) => replaceDocument(file, row)"
+                          >
+                            <el-dropdown-item v-if="permissionPrecise.doc_edit(id)">
+                              <el-icon class="color-secondary">
+                                <Upload />
+                              </el-icon>
+                              {{ $t('views.document.setting.replace') }}
+                            </el-dropdown-item>
+                          </el-upload>
                           <el-dropdown-item
                             @click.stop="deleteDocument(row)"
                             v-if="permissionPrecise.doc_delete(id)"
@@ -1079,6 +1094,20 @@ function downloadDocument(row: any) {
     })
 }
 
+const elUploadRef = ref()
+
+function replaceDocument(file: any, row: any) {
+  const formData = new FormData()
+  formData.append('file', file.raw, file.name)
+  elUploadRef.value.clearFiles()
+  loadSharedApi({ type: 'document', systemType: apiType.value })
+    .postReplaceSourceFile(id, row.id, formData, loading)
+    .then(() => {
+      getList()
+    })
+    .catch((e: any) => {})
+}
+
 function deleteDocument(row: any) {
   MsgConfirm(
     `${t('views.document.delete.confirmTitle3')} ${row.name} ?`,