diff --git a/pkg/base_info/office_struct.go b/pkg/base_info/office_struct.go
index a13255032..ac22c2239 100644
--- a/pkg/base_info/office_struct.go
+++ b/pkg/base_info/office_struct.go
@@ -53,7 +53,6 @@ type SendMsg2TagReq struct {
 
 	SenderPlatformID int32  `json:"senderPlatformID" binding:"required"`
 	Content          string `json:"content" binding:"required"`
-	ContentType      int32  `json:"contentType" binding:"required"`
 	OperationID      string `json:"operationID" binding:"required"`
 }