diff --git a/sdk-core/internal/conversation_msg/create_message.go b/sdk-core/internal/conversation_msg/create_message.go
index ead0c7f1b..e6f3f1096 100644
--- a/sdk-core/internal/conversation_msg/create_message.go
+++ b/sdk-core/internal/conversation_msg/create_message.go
@@ -25,7 +25,6 @@ import (
 	"path/filepath"
 	"strings"
 
-	"github.com/openimsdk/openim-sdk-core/v3/pkg/sdkerrs"
 	"github.com/openimsdk/openim-sdk-core/v3/pkg/utils"
 	"github.com/openimsdk/openim-sdk-core/v3/sdk_struct"
 )
@@ -56,9 +55,6 @@ func (c *Conversation) CreateTextAtMessage(ctx context.Context, text string, use
 	if text == "" {
 		return nil, errors.New("text can not be empty")
 	}
-	if len(userIDList) > 10 {
-		return nil, sdkerrs.ErrArgs
-	}
 	s := sdk_struct.MsgStruct{}
 	err := c.initBasicInfo(ctx, &s, constant.UserMsgType, constant.AtText)
 	if err != nil {