diff --git a/src/server/game_util/GoUtil.go b/src/server/game_util/GoUtil.go
index c1009684..b34bb778 100644
--- a/src/server/game_util/GoUtil.go
+++ b/src/server/game_util/GoUtil.go
@@ -238,8 +238,10 @@ func GobMarshal(data interface{}) ([]byte, error) {
 		bufferPool.Put(buf) // 即使出错也要归还
 		return nil, err
 	}
+	result := make([]byte, buf.Len())
+	copy(result, buf.Bytes())
 	bufferPool.Put(buf) // 归还到对象池
-	return buf.Bytes(), nil
+	return result, nil
 }
 
 func GobUnmarshal(data []byte, obj interface{}) error {