diff --git a/dubbo-serialization/dubbo-serialization-protostuff/src/main/java/org/apache/dubbo/common/serialize/protostuff/ProtostuffObjectInput.java b/dubbo-serialization/dubbo-serialization-protostuff/src/main/java/org/apache/dubbo/common/serialize/protostuff/ProtostuffObjectInput.java
index e8307748deb..834a4ca5f48 100644
--- a/dubbo-serialization/dubbo-serialization-protostuff/src/main/java/org/apache/dubbo/common/serialize/protostuff/ProtostuffObjectInput.java
+++ b/dubbo-serialization/dubbo-serialization-protostuff/src/main/java/org/apache/dubbo/common/serialize/protostuff/ProtostuffObjectInput.java
@@ -17,7 +17,7 @@
 
 package org.apache.dubbo.common.serialize.protostuff;
 
-import io.protostuff.GraphIOUtil;
+import io.protostuff.ProtobufIOUtil;
 import io.protostuff.Schema;
 import io.protostuff.runtime.RuntimeSchema;
 import java.io.DataInputStream;
@@ -61,12 +61,12 @@ public Object readObject() throws IOException, ClassNotFoundException {
         if (WrapperUtils.needWrapper(clazz)) {
             Schema<Wrapper> schema = RuntimeSchema.getSchema(Wrapper.class);
             Wrapper wrapper = schema.newMessage();
-            GraphIOUtil.mergeFrom(bytes, wrapper, schema);
+            ProtobufIOUtil.mergeFrom(bytes, wrapper, schema);
             result = wrapper.getData();
         } else {
             Schema schema = RuntimeSchema.getSchema(clazz);
             result = schema.newMessage();
-            GraphIOUtil.mergeFrom(bytes, result, schema);
+            ProtobufIOUtil.mergeFrom(bytes, result, schema);
         }
 
         return result;
diff --git a/dubbo-serialization/dubbo-serialization-protostuff/src/main/java/org/apache/dubbo/common/serialize/protostuff/ProtostuffObjectOutput.java b/dubbo-serialization/dubbo-serialization-protostuff/src/main/java/org/apache/dubbo/common/serialize/protostuff/ProtostuffObjectOutput.java
index ab94d3ba8df..5657adbc254 100644
--- a/dubbo-serialization/dubbo-serialization-protostuff/src/main/java/org/apache/dubbo/common/serialize/protostuff/ProtostuffObjectOutput.java
+++ b/dubbo-serialization/dubbo-serialization-protostuff/src/main/java/org/apache/dubbo/common/serialize/protostuff/ProtostuffObjectOutput.java
@@ -17,7 +17,7 @@
 
 package org.apache.dubbo.common.serialize.protostuff;
 
-import io.protostuff.GraphIOUtil;
+import io.protostuff.ProtobufIOUtil;
 import io.protostuff.LinkedBuffer;
 import io.protostuff.Schema;
 import io.protostuff.runtime.RuntimeSchema;
@@ -50,11 +50,11 @@ public void writeObject(Object obj) throws IOException {
             if (obj == null || WrapperUtils.needWrapper(obj)) {
                 Schema<Wrapper> schema = RuntimeSchema.getSchema(Wrapper.class);
                 Wrapper wrapper = new Wrapper(obj);
-                bytes = GraphIOUtil.toByteArray(wrapper, schema, buffer);
+                bytes = ProtobufIOUtil.toByteArray(wrapper, schema, buffer);
                 classNameBytes = Wrapper.class.getName().getBytes();
             } else {
                 Schema schema = RuntimeSchema.getSchema(obj.getClass());
-                bytes = GraphIOUtil.toByteArray(obj, schema, buffer);
+                bytes = ProtobufIOUtil.toByteArray(obj, schema, buffer);
                 classNameBytes = obj.getClass().getName().getBytes();
             }
         } finally {
diff --git a/dubbo-serialization/dubbo-serialization-test/src/test/java/org/apache/dubbo/common/serialize/protostuff/ProtostuffObjectOutputTest.java b/dubbo-serialization/dubbo-serialization-test/src/test/java/org/apache/dubbo/common/serialize/protostuff/ProtostuffObjectOutputTest.java
index 52397920f0f..37347cdad40 100644
--- a/dubbo-serialization/dubbo-serialization-test/src/test/java/org/apache/dubbo/common/serialize/protostuff/ProtostuffObjectOutputTest.java
+++ b/dubbo-serialization/dubbo-serialization-test/src/test/java/org/apache/dubbo/common/serialize/protostuff/ProtostuffObjectOutputTest.java
@@ -23,9 +23,13 @@
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
+import java.io.Serializable;
 import java.sql.Timestamp;
+import java.util.ArrayList;
 import java.util.Date;
+import java.util.List;
 
+import org.apache.dubbo.common.serialize.model.SerializablePerson;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
@@ -90,9 +94,58 @@ public void testSerializeDate() throws IOException, ClassNotFoundException {
         assertThat(serializedTime, is(originTime));
     }
 
+    @Test
+    public void testListObject() throws IOException, ClassNotFoundException {
+        List<SerializablePerson> list = new ArrayList<SerializablePerson>();
+        list.add(new SerializablePerson());
+        list.add(new SerializablePerson());
+        list.add(new SerializablePerson());
+        SerializablePersonList personList = new SerializablePersonList(list);
+        this.protostuffObjectOutput.writeObject(personList);
+        this.flushToInput();
+
+        SerializablePersonList serializedTime = protostuffObjectInput.readObject(SerializablePersonList.class);
+        assertThat(serializedTime, is(personList));
+    }
+
     private void flushToInput() throws IOException {
         this.protostuffObjectOutput.flushBuffer();
         this.byteArrayInputStream = new ByteArrayInputStream(byteArrayOutputStream.toByteArray());
         this.protostuffObjectInput = new ProtostuffObjectInput(byteArrayInputStream);
     }
+
+    private class SerializablePersonList implements Serializable {
+        private static final long serialVersionUID = 1L;
+
+        public List<SerializablePerson> personList;
+
+        public SerializablePersonList() {}
+
+        public SerializablePersonList(List<SerializablePerson> list) {
+            this.personList = list;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            if (this == obj)
+                return true;
+            if (obj == null)
+                return false;
+            if (getClass() != obj.getClass())
+                return false;
+
+            SerializablePersonList list = (SerializablePersonList) obj;
+            if (list.personList == null && this.personList == null)
+                return true;
+            if (list.personList == null || this.personList == null)
+                return false;
+            if (list.personList.size() != this.personList.size())
+                return false;
+            for (int i =0; i < this.personList.size(); i++) {
+                if (!this.personList.get(i).equals(list.personList.get(i)))
+                    return false;
+            }
+            return true;
+        }
+    }
 }