diff --git a/Realtime/Message/LCIMTextMessage.cs b/Realtime/Message/LCIMTextMessage.cs
index 65244cb..2b0fb56 100644
--- a/Realtime/Message/LCIMTextMessage.cs
+++ b/Realtime/Message/LCIMTextMessage.cs
@@ -30,7 +30,6 @@ namespace LeanCloud.Realtime {
         public override int MessageType => TextMessageType;
 
         internal override void Decode(Dictionary<string, object> msgData) {
-            base.Decode(msgData);
             if (msgData.TryGetValue(MessageTextKey, out object value)) {
                 Text = value as string;
             }
diff --git a/Realtime/Message/LCIMTypedMessage.cs b/Realtime/Message/LCIMTypedMessage.cs
index 3c1b677..6199642 100644
--- a/Realtime/Message/LCIMTypedMessage.cs
+++ b/Realtime/Message/LCIMTypedMessage.cs
@@ -109,11 +109,8 @@ namespace LeanCloud.Realtime {
         }
 
         internal virtual void Decode(Dictionary<string, object> msgData) {
+            // 直接保存
             data = msgData;
-            MessageType = (int)msgData[MessageTypeKey];
-            if (msgData.TryGetValue(MessageAttributesKey, out object attrObj)) {
-                customProperties = LCDecoder.Decode(attrObj) as Dictionary<string, object>;
-            }
         }
 
         internal static LCIMTypedMessage Deserialize(string json) {
@@ -128,6 +125,10 @@ namespace LeanCloud.Realtime {
                 // 未注册的类型消息
                 message = new LCIMTypedMessage();
             }
+            message.MessageType = msgType;
+            if (msgData.TryGetValue(MessageAttributesKey, out object attrObj)) {
+                message.customProperties = LCDecoder.Decode(attrObj) as Dictionary<string, object>;
+            }
             message.Decode(msgData);
             return message;
         }