diff --git a/src/main/java/org/redkale/convert/pb/ProtobufBytesWriter.java b/src/main/java/org/redkale/convert/pb/ProtobufBytesWriter.java
index 5c4747d29..11229e728 100644
--- a/src/main/java/org/redkale/convert/pb/ProtobufBytesWriter.java
+++ b/src/main/java/org/redkale/convert/pb/ProtobufBytesWriter.java
@@ -92,15 +92,16 @@ public class ProtobufBytesWriter extends ProtobufWriter { // 存在child情况
             this.child = result;
             delegate = result;
         } else {
-            if (delegate.child != null) {
-                while (delegate.child != null) {
-                    delegate = delegate.child;
-                }
-            }
             result.parent = delegate;
             delegate.child = result;
             delegate = result;
         }
+        if (this.parent != null) {
+            ProtobufWriter p = this;
+            while ((p = p.parent) instanceof ProtobufBytesWriter) {
+                ((ProtobufBytesWriter) p).delegate = result;
+            }
+        }
         result.configFieldFunc(result.parent);
         return result;
     }