diff --git a/abstruct.go b/abstruct.go
index 66fc96e..13f4ab3 100644
--- a/abstruct.go
+++ b/abstruct.go
@@ -34,4 +34,6 @@ type EasyMap interface {
 	Exist(key interface{}) bool
 	GetAll() map[interface{}]interface{}
 	GetAllForMapKeyString() map[string]interface{}
+	// Iterator 对数据的迭代
+	Iterator(IteratorFunc)
 }
diff --git a/define.go b/define.go
new file mode 100644
index 0000000..ca70d44
--- /dev/null
+++ b/define.go
@@ -0,0 +1,11 @@
+// Package easymap ...
+//
+// Description : easymap ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 2023-03-07 17:27
+package easymap
+
+// IteratorFunc 迭代函数
+type IteratorFunc func(key interface{}, value interface{})
diff --git a/normal.go b/normal.go
index 45dbe53..2829552 100644
--- a/normal.go
+++ b/normal.go
@@ -286,3 +286,19 @@ func (n *normal) GetAllForMapKeyString() map[string]interface{} {
 	}
 	return finalData
 }
+
+// Iterator ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 17:32 2023/3/7
+func (n *normal) Iterator(handleFunc IteratorFunc) {
+	if nil == handleFunc {
+		return
+	}
+	n.RLock()
+	defer n.RUnlock()
+	for key, val := range n.data {
+		handleFunc(key, val)
+	}
+}
diff --git a/segment.go b/segment.go
index e1577cf..aa36b66 100644
--- a/segment.go
+++ b/segment.go
@@ -155,3 +155,19 @@ func (s *segment) GetAllForMapKeyString() map[string]interface{} {
 	}
 	return finalData
 }
+
+// Iterator ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 17:32 2023/3/7
+func (s *segment) Iterator(handleFunc IteratorFunc) {
+	if nil == handleFunc {
+		return
+	}
+	for i := 0; i < s.segment; i++ {
+		for k, v := range s.dataTable[i].GetAll() {
+			handleFunc(k, v)
+		}
+	}
+}
diff --git a/sync_normal.go b/sync_normal.go
index c8e79f4..ce0662d 100644
--- a/sync_normal.go
+++ b/sync_normal.go
@@ -233,3 +233,18 @@ func (s *syncMap) GetAllForMapKeyString() map[string]interface{} {
 	}
 	return finalData
 }
+
+// Iterator 迭代数据
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 17:27 2023/3/7
+func (s *syncMap) Iterator(handleFunc IteratorFunc) {
+	if nil == handleFunc {
+		return
+	}
+	s.data.Range(func(key, value interface{}) bool {
+		handleFunc(key, value)
+		return true
+	})
+}
diff --git a/sync_segment.go b/sync_segment.go
index a6eade4..c8e3cc0 100644
--- a/sync_segment.go
+++ b/sync_segment.go
@@ -136,3 +136,14 @@ func (s *segmentSync) GetAllForMapKeyString() map[string]interface{} {
 	}
 	return finalData
 }
+
+func (s *segmentSync) Iterator(handleFunc IteratorFunc) {
+	if nil == handleFunc {
+		return
+	}
+	for i := 0; i < s.segment; i++ {
+		for k, v := range s.dataTable[i].GetAll() {
+			handleFunc(k, v)
+		}
+	}
+}