diff --git a/README.md b/README.md
index 1473fd1..c78fc68 100644
--- a/README.md
+++ b/README.md
@@ -22,4 +22,23 @@ go get -v -u go.dtapp.net/goip
 import (
     "go.dtapp.net/goip"
 )
+```
+
+```go
+package main
+
+import (
+	"go.dtapp.net/goip"
+	"testing"
+)
+
+func TestGoIp(t *testing.T) {
+	// 获取Mac地址
+	t.Log(goip.GetMacAddr())
+	// 内网ip
+	t.Log(goip.GetInsideIp())
+	// 外网ip
+	t.Log(goip.GetOutsideIp())
+}
+
 ```
\ No newline at end of file
diff --git a/ip.go b/ip.go
index 7d368c9..5689de1 100644
--- a/ip.go
+++ b/ip.go
@@ -71,3 +71,20 @@ func GetOutsideIp() (ip string) {
 	ip = respGetOutsideIp.Data.Ip
 	return respGetOutsideIp.Data.Ip
 }
+
+// GetMacAddr 获取Mac地址
+func GetMacAddr() (arrays []string) {
+	netInterfaces, err := net.Interfaces()
+	if err != nil {
+		return arrays
+	}
+	for _, netInterface := range netInterfaces {
+		addr := netInterface.HardwareAddr.String()
+		if len(addr) == 0 {
+			continue
+		}
+
+		arrays = append(arrays, addr)
+	}
+	return arrays
+}
diff --git a/ip_test.go b/ip_test.go
index 7b94663..4f05f6b 100644
--- a/ip_test.go
+++ b/ip_test.go
@@ -13,3 +13,7 @@ func TestGetInsideIp(t *testing.T) {
 func TestIps(t *testing.T) {
 	t.Log(Ips())
 }
+
+func TestGetMacAddr(t *testing.T) {
+	t.Log(GetMacAddr())
+}