diff --git a/src/Eccube/Form/Type/Admin/LoginType.php b/src/Eccube/Form/Type/Admin/LoginType.php
index 5f7152619f1..8c4cca69949 100644
--- a/src/Eccube/Form/Type/Admin/LoginType.php
+++ b/src/Eccube/Form/Type/Admin/LoginType.php
@@ -13,6 +13,7 @@
 
 namespace Eccube\Form\Type\Admin;
 
+use Eccube\Common\EccubeConfig;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\Extension\Core\Type\PasswordType;
 use Symfony\Component\Form\Extension\Core\Type\TextType;
@@ -23,13 +24,21 @@
 
 class LoginType extends AbstractType
 {
+    /**
+     * @var EccubeConfig
+     */
+    protected $eccubeConfig;
+
     /**
      * @var SessionInterface
      */
     protected $session;
 
-    public function __construct(SessionInterface $session)
-    {
+    public function __construct(
+        EccubeConfig $eccubeConfig,
+        SessionInterface $session
+    ) {
+        $this->eccubeConfig = $eccubeConfig;
         $this->session = $session;
     }
 
@@ -40,7 +49,7 @@ public function buildForm(FormBuilderInterface $builder, array $options)
     {
         $builder->add('login_id', TextType::class, [
             'attr' => [
-                'maxlength' => 50,
+                'maxlength' => $this->eccubeConfig['eccube_id_max_len'],
             ],
             'constraints' => [
                 new Assert\NotBlank(),
@@ -49,7 +58,7 @@ public function buildForm(FormBuilderInterface $builder, array $options)
         ]);
         $builder->add('password', PasswordType::class, [
             'attr' => [
-                'maxlength' => 50,
+                'maxlength' => $this->eccubeConfig['eccube_password_max_len'],
             ],
             'constraints' => [
                 new Assert\NotBlank(),