diff --git a/map.go b/map.go
index 46145c4..16ae07c 100644
--- a/map.go
+++ b/map.go
@@ -9,6 +9,7 @@ package wrapper
 
 import (
 	"errors"
+	"git.zhangdeman.cn/zhangdeman/serialize"
 	"reflect"
 	"sync"
 )
@@ -148,9 +149,9 @@ func (m *Map) GetDefault(field string, defaultValue any, allowNil bool) any {
 // Author : go_developer@163.com<白茶清欢>
 //
 // Date : 19:39 2024/11/6
-func (m *Map) Value() Map {
-	if nil == m {
-		return map[string]any{}
+func (m *Map) Value() map[string]any {
+	if m.IsNil() {
+		return nil
 	}
 	return *m
 }
@@ -213,3 +214,16 @@ func (m *Map) FilterDefault(fieldMap map[string]any, allowNil bool) map[string]a
 	}
 	return res
 }
+
+// MarshalJSON Map序列化
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 15:35 2024/11/19
+func (m *Map) MarshalJSON() ([]byte, error) {
+	mapData := m.Value()
+	if nil == mapData {
+		return nil, nil
+	}
+	return serialize.JSON.MarshalForByte(mapData)
+}
diff --git a/map_test.go b/map_test.go
index e57cc26..58652ee 100644
--- a/map_test.go
+++ b/map_test.go
@@ -28,3 +28,20 @@ func TestMap_IsNil(t *testing.T) {
 	fmt.Println(m.Set("a", 1))
 	fmt.Println(m.IsNil(), m1.IsNil())
 }
+
+func TestMap_IsMasher(t *testing.T) {
+	var (
+		m  Map
+		m1 = Map(map[string]any{
+			"a": 1,
+			"b": m,
+			"c": Map(map[string]any{
+				"name": "de",
+			}),
+		})
+	)
+	d, err := m.MarshalJSON()
+	fmt.Println(string(d), err)
+	d, err = m1.MarshalJSON()
+	fmt.Println(string(d), err)
+}