diff --git a/src/schemas/Activity.ts b/src/schemas/Activity.ts
index da02f094..076f3fdf 100644
--- a/src/schemas/Activity.ts
+++ b/src/schemas/Activity.ts
@@ -50,6 +50,14 @@ export interface Share {
   description: string
 }
 
+export interface DingFile {
+  spaceId: string
+  fileId: string
+  fileName: string
+  fileSize: number
+  fileType: string
+}
+
 export interface ActivitySchema {
   _boundToObjectId: DetailObjectId
   _creatorId: UserId
@@ -61,6 +69,7 @@ export interface ActivitySchema {
     comment: string
     content: string
     attachments: File[]
+    dingFiles?: DingFile[]
     voice: Voice
     mentionsArray: string[]
     mentions: {