diff --git a/paramset.go b/paramset.go
index 71337d0..609eb95 100644
--- a/paramset.go
+++ b/paramset.go
@@ -7,6 +7,7 @@ import (
 	"gitea.cdlsxd.cn/self-tools/l_msg_api/cache"
 	"gitea.cdlsxd.cn/self-tools/l_msg_api/httpclient"
 	"strings"
+	"time"
 )
 
 func (m *MessageCenter) parseOACreateParam(formModel *FormsData) (out []byte) {
@@ -39,17 +40,19 @@ func (m *MessageCenter) parseSendBlackBoardParam(title, content string, receiver
 }
 
 func (m *MessageCenter) getAccessToken() (string, error) {
-	if tokenInterface, exist := cache.InstanceCacheMap().Get(m.ClientKey); exist {
-		return tokenInterface.(string), nil
-	}
 	var data accessTokenResponse
-
+	if tokenInstance, exist := cache.InstanceCacheMap().Get(m.ClientKey); exist {
+		data = tokenInstance.(accessTokenResponse)
+		if int64(data.AccessExpire) >= time.Now().Unix() {
+			return tokenInstance.(string), nil
+		}
+	}
 	var authParam, _ = json.Marshal(map[string]string{"client_key": m.ClientKey, "client_secret": m.ClientSecret})
 	err := m.accessPost(accessToken, authParam, &data)
 	if err != nil {
 		return "", err
 	}
-	cache.InstanceCacheMap().Put(m.ClientKey, data.AccessToken)
+	cache.InstanceCacheMap().Put(m.ClientKey, data)
 	return data.AccessToken, err
 }
 
diff --git a/test/msg_test.go b/test/msg_test.go
index 96b42ea..8204c08 100644
--- a/test/msg_test.go
+++ b/test/msg_test.go
@@ -25,6 +25,12 @@ func TestSms(t *testing.T) {
 
 }
 
+func TestAccess(t *testing.T) {
+	msg, _ := l_msg_api.NewMessageCenter(serverHost, ClientKey, ClientSecret, "sms", "sms")
+	msg2, _ := l_msg_api.NewMessageCenter(serverHost, ClientKey, ClientSecret, "sms", "sms")
+	fmt.Println(msg, msg2)
+}
+
 func TestOaCreate(t *testing.T) {
 	msg, err := l_msg_api.NewMessageCenter(local, ClientKey, ClientSecret, "sw_oa", "sw_oa_purchase")
 	if err != nil {