diff --git a/apps/product/management/commands/add_product_tag.py b/apps/product/management/commands/add_product_tag.py
index e430166d..01f5d7f7 100644
--- a/apps/product/management/commands/add_product_tag.py
+++ b/apps/product/management/commands/add_product_tag.py
@@ -7,7 +7,7 @@ from tqdm import tqdm
 
 
 class Command(BaseCommand):
-    help = '''Add add product tags  networks from old db to new db.
+    help = '''Add product tags  networks from old db to new db.
               Run after add_product!!!'''
 
     def category_sql(self):
@@ -147,14 +147,6 @@ class Command(BaseCommand):
                     tag.label = new_label
             tag.save()
 
-    def check_serial_number(self):
-        category = TagCategory.objects.get(index_name='serial_number')
-        tags = Tag.objects.filter(category=category, products__isnull=False)
-        for tag in tqdm(tags, desc='Update serial number for product'):
-            tag.products.all().update(serial_number=tag.value)
-
-        self.stdout.write(self.style.WARNING(f'Check serial number product end.'))
-
     def handle(self, *args, **kwargs):
         self.remove_tags_product()
         self.remove_tags()
@@ -163,4 +155,3 @@ class Command(BaseCommand):
         self.add_tag()
         self.check_tag()
         self.add_product_tag()
-        self.check_serial_number()
diff --git a/apps/product/management/commands/check_serial_number.py b/apps/product/management/commands/check_serial_number.py
new file mode 100644
index 00000000..ae2e43a3
--- /dev/null
+++ b/apps/product/management/commands/check_serial_number.py
@@ -0,0 +1,22 @@
+from django.core.management.base import BaseCommand
+from django.db import connections
+from establishment.management.commands.add_position import namedtuplefetchall
+from tag.models import Tag, TagCategory
+from product.models import Product, ProductType
+from tqdm import tqdm
+
+
+class Command(BaseCommand):
+    help = '''Check product serial number from old db to new db.
+              Run after add_product_tag!!!'''
+
+    def check_serial_number(self):
+        category = TagCategory.objects.get(index_name='serial_number')
+        tags = Tag.objects.filter(category=category, products__isnull=False)
+        for tag in tqdm(tags, desc='Update serial number for product'):
+            tag.products.all().update(serial_number=tag.value)
+
+        self.stdout.write(self.style.WARNING(f'Check serial number product end.'))
+
+    def handle(self, *args, **kwargs):
+        self.check_serial_number()