diff --git a/Doctrine/EventSubscriber/EntityListener.php b/Doctrine/EventSubscriber/EntityListener.php
index e13de44..ef1f8cc 100644
--- a/Doctrine/EventSubscriber/EntityListener.php
+++ b/Doctrine/EventSubscriber/EntityListener.php
@@ -14,47 +14,72 @@
 namespace Plugin\Api42\Doctrine\EventSubscriber;
 
 use Doctrine\Common\EventSubscriber;
-use Doctrine\Persistence\Event\LifecycleEventArgs;
+use Doctrine\ORM\Event\PrePersistEventArgs;
+use Doctrine\ORM\Event\PreRemoveEventArgs;
+use Doctrine\ORM\Event\PreUpdateEventArgs;
 use Doctrine\ORM\Events;
+use Doctrine\Persistence\Event\LifecycleEventArgs;
+use GraphQL\Error\Error;
+use Plugin\Api42\GraphQL\EntityAccessPolicy;
 use Plugin\Api42\Service\WebHookEvents;
 
 class EntityListener implements EventSubscriber
 {
-    /**
-     * @var WebHookEvents
-     */
-    private $webHookEvents;
+    private WebHookEvents $webHookEvents;
+
+    private EntityAccessPolicy $accessPolicy;
 
     /**
      * EntityListener constructor.
-     * @param WebHookEvents $webHookEvents
      */
-    public function __construct(WebHookEvents $webHookEvents)
+    public function __construct(WebHookEvents $webHookEvents, EntityAccessPolicy $accessPolicy)
     {
         $this->webHookEvents = $webHookEvents;
+        $this->accessPolicy = $accessPolicy;
     }
 
-    public function getSubscribedEvents()
+    public function getSubscribedEvents(): array
     {
         return [
+            Events::prePersist,
+            Events::preUpdate,
+            Events::preRemove,
             Events::postPersist,
             Events::postUpdate,
-            Events::preRemove,
         ];
     }
 
-    public function postPersist(LifecycleEventArgs $args)
+    public function prePersist(PrePersistEventArgs $args): void
+    {
+        $this->validateEntityScope($args->getObject());
+    }
+
+    public function preUpdate(PreUpdateEventArgs $args): void
+    {
+        $this->validateEntityScope($args->getObject());
+    }
+
+    public function postPersist(LifecycleEventArgs $args): void
     {
         $this->webHookEvents->onCreated($args->getObject());
     }
 
-    public function postUpdate(LifecycleEventArgs $args)
+    public function postUpdate(LifecycleEventArgs $args): void
     {
         $this->webHookEvents->onUpdated($args->getObject());
     }
 
-    public function preRemove(LifecycleEventArgs $args)
+    public function preRemove(PreRemoveEventArgs $args): void
     {
+        $this->validateEntityScope($args->getObject());
         $this->webHookEvents->onDeleted($args->getObject());
     }
+
+    private function validateEntityScope(object $entity): void
+    {
+        $entityClass = get_class($entity);
+        if ($this->accessPolicy->canWriteEntity($entityClass) === false) {
+            throw new Error("Cannot write entity. `{$entityClass}`");
+        }
+    }
 }
diff --git a/GraphQL/EntityAccessPolicy.php b/GraphQL/EntityAccessPolicy.php
index fd81bd9..8efe30b 100644
--- a/GraphQL/EntityAccessPolicy.php
+++ b/GraphQL/EntityAccessPolicy.php
@@ -15,6 +15,7 @@
 
 use Eccube\Request\Context;
 use Eccube\Security\SecurityContext;
+use Symfony\Component\HttpFoundation\RequestStack;
 
 class EntityAccessPolicy
 {
@@ -26,28 +27,23 @@ class EntityAccessPolicy
 
     private Context $requestContext;
 
-    public function __construct(SecurityContext $securityContext, Context $requestContext)
+    private RequestStack $requestStack;
+
+    public function __construct(SecurityContext $securityContext, Context $requestContext, RequestStack $requestStack)
     {
         $this->securityContext = $securityContext;
         $this->requestContext = $requestContext;
+        $this->requestStack = $requestStack;
     }
 
     public function canReadEntity(string $entityClass): bool
     {
-        if (is_null($this->securityContext->getLoginUser())) {
-            return !empty(array_filter($this->frontAllowLists, function (AllowList $al) use ($entityClass) {
-                return $al->isAllowed($entityClass);
-            }));
-        }
-
         // TODO 管理画面をAPIで実装するまでは管理者画面URL以下でアクセスした場合はすべてのEntityを許可する
         if ($this->requestContext->isAdmin()) {
             return true;
         }
 
-        $role = 'ROLE_OAUTH2_READ:'.strtoupper((new \ReflectionClass($entityClass))->getShortName());
-
-        return $this->securityContext->isGranted($role);
+        return $this->canAccessEntity($entityClass, false);
     }
 
     public function canReadProperty(string $entityClass, $fieldName): bool
@@ -64,13 +60,41 @@ public function canReadProperty(string $entityClass, $fieldName): bool
         return !empty($allowed);
     }
 
-    public function addAllowList(AllowList $allowList)
+    public function canWriteEntity(string $entityClass): bool
+    {
+        if (!$this->isApiRequest()) {
+            return true;
+        }
+
+        return $this->canAccessEntity($entityClass, true);
+    }
+
+    private function canAccessEntity(string $entityClass, bool $write): bool
+    {
+        if (is_null($this->securityContext->getLoginUser())) {
+            return !empty(array_filter($this->frontAllowLists, function (AllowList $al) use ($entityClass) {
+                return $al->isAllowed($entityClass);
+            }));
+        }
+
+        $access = $write ? 'WRITE' : 'READ';
+        $role = "ROLE_OAUTH2_{$access}:".strtoupper((new \ReflectionClass($entityClass))->getShortName());
+
+        return $this->securityContext->isGranted($role);
+    }
+    public function addAllowList(AllowList $allowList): void
     {
         $this->allowLists[] = $allowList;
     }
 
-    public function addFrontAllowList(AllowList $allowList)
+    public function addFrontAllowList(AllowList $allowList): void
     {
         $this->frontAllowLists[] = $allowList;
     }
+
+    private function isApiRequest(): bool
+    {
+        $mainRequest = $this->requestStack->getMainRequest();
+        return $mainRequest != null && $mainRequest->getPathInfo() === '/api';
+    }
 }
diff --git a/Tests/Web/ApiControllerTest.php b/Tests/Web/ApiControllerTest.php
index 6c8e527..530c330 100644
--- a/Tests/Web/ApiControllerTest.php
+++ b/Tests/Web/ApiControllerTest.php
@@ -90,6 +90,9 @@ public function permissionProvider()
             [['read:Customer'], '{ customer(id:1) { id, password } }', 'Cannot query field "password" on type "Customer".'],
             [null, '{ product(id:1) { id, name } }'],
             [null, '{ product(id:1) { id, name, Creator { id } } }', 'Cannot query field "Creator" on type "Product".'],
+            [['read:ProductClass'], 'mutation { updateProductStock(code: "sand-01", stock: 10, stock_unlimited:false) { id } }', 'Cannot write entity. `Eccube\\Entity\\ProductClass`'],
+            [['read:ProductClass', 'write:ProductClass'], 'mutation { updateProductStock(code: "sand-01", stock: 10, stock_unlimited:false) { id } }', 'Cannot write entity. `Eccube\\Entity\\ProductStock`'],
+            [['read:ProductClass', 'write:ProductClass', 'write:ProductStock'], 'mutation { updateProductStock(code: "sand-01", stock: 10, stock_unlimited:false) { id } }'],
         ];
     }