diff --git a/conf/app.php b/conf/app.php
index 7b25ff8..9ab6d76 100644
--- a/conf/app.php
+++ b/conf/app.php
@@ -125,6 +125,7 @@ $configs = array(
     //源码下载：https://git.filesite.io/filesite/service-3rd
     'service_3rd_api_domain' => 'https://service.filesite.io',
     'service_3rd_api_key' => '你的密钥',
+    'sms_code_cache_time' => 600,           //短信验证码缓存时长，单位：秒
 
 );
 
diff --git a/themes/tajian/controller/FrontapiController.php b/themes/tajian/controller/FrontapiController.php
index 6b23688..3b84cb0 100644
--- a/themes/tajian/controller/FrontapiController.php
+++ b/themes/tajian/controller/FrontapiController.php
@@ -453,7 +453,8 @@ eof;
         $rndCode_created = !empty($_SESSION['randSmsCode_created']) ? $_SESSION['randSmsCode_created'] : 0;
         $current_time = time();
 
-        if (!empty($rndCode_created) && $current_time - $rndCode_created > 600) {
+        $max_cache_time = !empty(FSC::$app['config']['sms_code_cache_time']) ? FSC::$app['config']['sms_code_cache_time'] : 600;
+        if (!empty($rndCode_created) && $current_time - $rndCode_created > $max_cache_time) {
             $rndCode = 0;
         }