diff --git a/protocol/src/main/java/com/zfoo/protocol/anno/Note.java b/protocol/src/main/java/com/zfoo/protocol/anno/Note.java
index bf102828..101b20fc 100644
--- a/protocol/src/main/java/com/zfoo/protocol/anno/Note.java
+++ b/protocol/src/main/java/com/zfoo/protocol/anno/Note.java
@@ -19,7 +19,7 @@ import java.lang.annotation.*;
  */
 @Documented
 @Retention(RetentionPolicy.RUNTIME)
-@Target({ElementType.FIELD})
+@Target({ElementType.FIELD, ElementType.TYPE})
 public @interface Note {
 
     String value() default "";
diff --git a/protocol/src/main/java/com/zfoo/protocol/anno/Protocol.java b/protocol/src/main/java/com/zfoo/protocol/anno/Protocol.java
index bbc92efb..2cd33417 100644
--- a/protocol/src/main/java/com/zfoo/protocol/anno/Protocol.java
+++ b/protocol/src/main/java/com/zfoo/protocol/anno/Protocol.java
@@ -26,6 +26,5 @@ public @interface Protocol {
 
     boolean enhance() default true;
 
-    String note() default "";
 }
 
diff --git a/protocol/src/main/java/com/zfoo/protocol/generate/GenerateProtocolNote.java b/protocol/src/main/java/com/zfoo/protocol/generate/GenerateProtocolNote.java
index 42e9cb5b..84686ac5 100644
--- a/protocol/src/main/java/com/zfoo/protocol/generate/GenerateProtocolNote.java
+++ b/protocol/src/main/java/com/zfoo/protocol/generate/GenerateProtocolNote.java
@@ -109,9 +109,9 @@ public abstract class GenerateProtocolNote {
         for (var protocolRegistration : protocolRegistrations) {
             var protocolClazz = protocolRegistration.protocolConstructor().getDeclaringClass();
             var classNote = StringUtils.EMPTY;
-            var protocolClass = protocolClazz.getDeclaredAnnotation(Protocol.class);
-            if (protocolClass != null && StringUtils.isNotEmpty(protocolClass.note())) {
-                classNote = StringUtils.trim(protocolClass.note());
+            var protocolClass = protocolClazz.getDeclaredAnnotation(Note.class);
+            if (protocolClass != null && StringUtils.isNotEmpty(protocolClass.value())) {
+                classNote = StringUtils.trim(protocolClass.value());
             }
 
             var fieldNoteMap = new HashMap<String, String>();
diff --git a/protocol/src/test/java/com/zfoo/protocol/packet/ComplexObject.java b/protocol/src/test/java/com/zfoo/protocol/packet/ComplexObject.java
index ab6cacdd..0b5fe779 100644
--- a/protocol/src/test/java/com/zfoo/protocol/packet/ComplexObject.java
+++ b/protocol/src/test/java/com/zfoo/protocol/packet/ComplexObject.java
@@ -20,7 +20,8 @@ import com.zfoo.protocol.anno.Protocol;
 
 import java.util.*;
 
-@Protocol(id = 100, note = "复杂的对象，包括了各种复杂的结构，数组，List，Set，Map")
+@Protocol(id = 100)
+@Note("复杂的对象，包括了各种复杂的结构，数组，List，Set，Map")
 public class ComplexObject {