diff --git a/src/Client.php b/src/Client.php
index 2c7d172..e922a28 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -121,7 +121,7 @@ public function pullConfigBatch(array $namespaceNames)
         foreach ($namespaceNames as $namespaceName) {
             $request = [];
 
-            $config = (new Config($this->saveDir))->setNamespace($namespaceName);
+            $config = new Config($this->saveDir,$this->appId,$namespaceName);
 
             $requestUrl = $url . $namespaceName;
             $params['releaseKey'] = $config->get('apolloReleaseKey', '');
diff --git a/src/Config.php b/src/Config.php
index e30ee03..2cc4cdc 100644
--- a/src/Config.php
+++ b/src/Config.php
@@ -7,6 +7,8 @@
 
 class Config implements \ArrayAccess
 {
+    protected $appId;
+
     protected $configDir = '';
 
     protected $configFile = '';
@@ -20,9 +22,11 @@ class Config implements \ArrayAccess
 
     protected $loadConfig = false;
 
-    public function __construct($configDir)
+    public function __construct($configDir, $appId = 'apolloConfig', $namespace = 'application')
     {
         $this->configDir = $configDir;
+        $this->appId = $appId;
+        $this->setNamespace($namespace);
     }
 
     /**
@@ -52,7 +56,7 @@ protected function loadConfig()
 
     public function getConfigFile()
     {
-        $this->configFile = $this->configDir . DIRECTORY_SEPARATOR . "apolloConfig.{$this->namespace}.ini";
+        $this->configFile = $this->configDir . DIRECTORY_SEPARATOR . "{$this->appId}.{$this->namespace}.ini";
         return $this->configFile;
     }