diff --git a/src/Eccube/Controller/ShoppingController.php b/src/Eccube/Controller/ShoppingController.php
index f5b5185061f..4d6dde8c12b 100644
--- a/src/Eccube/Controller/ShoppingController.php
+++ b/src/Eccube/Controller/ShoppingController.php
@@ -1048,9 +1048,14 @@ public function nonmember(Application $app, Request $request)
             // 非会員用セッションを作成
             $app['eccube.service.shopping']->setNonMember($this->sessionKey, $Customer);
 
-            $customerAddresses = array();
-            $customerAddresses[] = $CustomerAddress;
-            $app['session']->set($this->sessionCustomerAddressKey, serialize($customerAddresses));
+            $CustomerAddressArray = $CustomerAddress->toArray();
+            $CustomerAddressArray['Customer'] = $CustomerAddress->getCustomer()->toArray();
+            $CustomerAddressArray['Pref'] = $CustomerAddress->getPref()->toArray();
+
+            $CustomerAddressesArray = array();
+            $CustomerAddressesArray[] = $CustomerAddressArray;
+
+            $app['session']->set($this->sessionCustomerAddressKey, json_encode($CustomerAddressesArray));
 
             $event = new EventArgs(
                 array(
@@ -1419,12 +1424,15 @@ private function getCustomerAddress(Application $app, $CustomerAddressData)
             return $CustomerAddressData;
         } else {
             $cusAddId = $CustomerAddressData;
+
             $customerAddresses = $app['session']->get($this->sessionCustomerAddressKey);
-            $customerAddresses = unserialize($customerAddresses);
+            $customerAddresses = json_decode($customerAddresses, true);
+
+            $customerAddressArray = $customerAddresses[$cusAddId];
 
-            $CustomerAddress = $customerAddresses[$cusAddId];
-            $pref = $app['eccube.repository.master.pref']->find($CustomerAddress->getPref()->getId());
-            $CustomerAddress->setPref($pref);
+            $CustomerAddress = new CustomerAddress();
+            $CustomerAddress->setPropertiesFromArray($customerAddressArray);
+            $CustomerAddress->setPref($app['eccube.repository.master.pref']->find($customerAddressArray['Pref']['id']));
 
             return $CustomerAddress;
         }
@@ -1467,11 +1475,15 @@ public function shippingMultipleEdit(Application $app, Request $request)
 
             log_info('非会員お届け先追加処理開始');
 
+            $customerAddressArray = $CustomerAddress->toArray();
+            $customerAddressArray['Customer'] = $CustomerAddress->getCustomer()->toArray();
+            $customerAddressArray['Pref'] = $CustomerAddress->getPref()->toArray();
+
             // 非会員用のセッションに追加
-            $customerAddresses = $app['session']->get($this->sessionCustomerAddressKey);
-            $customerAddresses = unserialize($customerAddresses);
-            $customerAddresses[] = $CustomerAddress;
-            $app['session']->set($this->sessionCustomerAddressKey, serialize($customerAddresses));
+            $customerAddresses = json_decode($app['session']->get($this->sessionCustomerAddressKey), true);
+            $customerAddresses[] = $customerAddressArray;
+
+            $app['session']->set($this->sessionCustomerAddressKey, json_encode($customerAddresses));
 
             $event = new EventArgs(
                 array(
diff --git a/src/Eccube/Form/Type/ShippingMultipleItemType.php b/src/Eccube/Form/Type/ShippingMultipleItemType.php
index f9939fbffef..13a4c678d7d 100644
--- a/src/Eccube/Form/Type/ShippingMultipleItemType.php
+++ b/src/Eccube/Form/Type/ShippingMultipleItemType.php
@@ -24,6 +24,7 @@
 
 namespace Eccube\Form\Type;
 
+use Eccube\Entity\CustomerAddress;
 use Doctrine\ORM\EntityRepository;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\FormBuilderInterface;
@@ -86,14 +87,21 @@ public function buildForm(FormBuilderInterface $builder, array $options)
                     // 非会員の場合、セッションに設定されたCustomerAddressを設定
                     if ($app['session']->has('eccube.front.shopping.nonmember.customeraddress')) {
                         $customerAddresses = $app['session']->get('eccube.front.shopping.nonmember.customeraddress');
-                        $customerAddresses = unserialize($customerAddresses);
+                        $customerAddresses = json_decode($customerAddresses, true);
 
                         $addresses = array();
-                        $i = 0;
-                        /** @var \Eccube\Entity\CustomerAddress $CustomerAddress */
-                        foreach ($customerAddresses as $CustomerAddress) {
-                            $addresses[$i] = $CustomerAddress->getShippingMultipleDefaultName();
-                            $i++;
+                        /** @var \Eccube\Entity\CustomerAddress $value */
+                        foreach ($customerAddresses as $value) {
+
+                            $customerAddressArray = (array) $value;
+                            $customerAddressArray['Pref'] = (array) $customerAddressArray['Pref'];
+
+                            $CustomerAddress = new CustomerAddress();
+                            $CustomerAddress->setPropertiesFromArray($customerAddressArray);
+                            $CustomerAddress->setCustomer($app['eccube.service.shopping']->getNonMember('eccube.front.shopping.nonmember'));
+                            $CustomerAddress->setPref($app['eccube.repository.master.pref']->find($customerAddressArray['Pref']['id']));
+
+                            $addresses[] = $CustomerAddress->getShippingMultipleDefaultName();
                         }
                         $form->add('customer_address', 'choice', array(
                             'choices' => $addresses,