diff --git a/internal/rpc/msg/callback.go b/internal/rpc/msg/callback.go
index c0c933afe..d84af8099 100644
--- a/internal/rpc/msg/callback.go
+++ b/internal/rpc/msg/callback.go
@@ -155,7 +155,7 @@ func callbackWordFilter(msg *pbChat.SendMsgReq) cbApi.CommonCallbackResp {
 			return callbackResp
 		}
 	}
-	if resp.ErrCode == constant.CallbackHandleSuccess && resp.ActionCode == constant.ActionAllow {
+	if resp.ErrCode == constant.CallbackHandleSuccess && resp.ActionCode == constant.ActionAllow && resp.Content != "" {
 		msg.MsgData.Content = []byte(resp.Content)
 	}
 	log.NewDebug(msg.OperationID, utils.GetSelfFuncName(), string(msg.MsgData.Content))
diff --git a/internal/rpc/msg/send_msg.go b/internal/rpc/msg/send_msg.go
index f75fe3a3d..a97dd84ed 100644
--- a/internal/rpc/msg/send_msg.go
+++ b/internal/rpc/msg/send_msg.go
@@ -155,7 +155,7 @@ func (rpc *rpcChat) SendMsg(_ context.Context, pb *pbChat.SendMsgReq) (*pbChat.S
 	// callback
 	callbackResp := callbackWordFilter(pb)
 	if callbackResp.ErrCode != 0 {
-		log.NewError(pb.OperationID, utils.GetSelfFuncName(), "callbackWordFilter resp: ", callbackResp)
+		log.NewDebug(pb.OperationID, utils.GetSelfFuncName(), "callbackWordFilter resp: ", callbackResp)
 	}
 	log.NewDebug(pb.OperationID, utils.GetSelfFuncName(), "callbackResp: ", callbackResp)
 	if callbackResp.ActionCode != constant.ActionAllow {