diff --git a/lib/ansible/module_utils/alicloud_ecs.py b/lib/ansible/module_utils/alicloud_ecs.py
index 53f36bad..ddc443e3 100644
--- a/lib/ansible/module_utils/alicloud_ecs.py
+++ b/lib/ansible/module_utils/alicloud_ecs.py
@@ -60,7 +60,8 @@ def acs_common_argument_spec():
                                  fallback=(env_fallback, ['ALICLOUD_SECRET_KEY', 'ALICLOUD_SECRET_ACCESS_KEY'])),
         alicloud_security_token=dict(aliases=['security_token'], no_log=True,
                                      fallback=(env_fallback, ['ALICLOUD_SECURITY_TOKEN'])),
-        ecs_role_name=dict(aliases=['role_name'], fallback=(env_fallback, ['ALICLOUD_ECS_ROLE_NAME']))
+        ecs_role_name=dict(aliases=['role_name'], fallback=(env_fallback, ['ALICLOUD_ECS_ROLE_NAME'])),
+        alicloud_protocol=dict(aliases=['protocol'], fallback=(env_fallback, ['ALICLOUD_PROTOCOL']), default='https')
     )
 
 
@@ -92,7 +93,8 @@ def get_acs_connection_info(params):
                       acs_secret_access_key=params.get('alicloud_secret_key'),
                       security_token=params.get('alicloud_security_token'),
                       ecs_role_name=params.get('ecs_role_name'),
-                      user_agent='Ansible-Provider-Alicloud')
+                      user_agent='Ansible-Provider-Alicloud',
+                      alicloud_protocol=params.get('alicloud_protocol'))
     return ecs_params
 
 
diff --git a/lib/ansible/modules/cloud/alicloud/ali_vpc.py b/lib/ansible/modules/cloud/alicloud/ali_vpc.py
index 14deb3bf..74ff6d22 100644
--- a/lib/ansible/modules/cloud/alicloud/ali_vpc.py
+++ b/lib/ansible/modules/cloud/alicloud/ali_vpc.py
@@ -48,7 +48,6 @@
         It cannot begin with http:// or https://.
         This is used in combination with C(cidr_block) to determine if a VPC already exists.
     aliases: ['vpc_name']
-    required: True
     type: str
   vpc_id:
     description:
@@ -63,7 +62,6 @@
     description:
       - The primary CIDR of the VPC. This is used in conjunction with the C(name) to ensure idempotence.
     aliases: ['cidr']
-    required: True
     type: str
   user_cidrs:
     description:
@@ -244,9 +242,9 @@ def main():
     argument_spec = ecs_argument_spec()
     argument_spec.update(dict(
         state=dict(default='present', choices=['present', 'absent']),
-        cidr_block=dict(type='str', required=True, aliases=['cidr']),
+        cidr_block=dict(type='str', aliases=['cidr']),
         user_cidrs=dict(type='list', elements='str'),
-        name=dict(type='str', required=True, aliases=['vpc_name']),
+        name=dict(type='str', aliases=['vpc_name']),
         vpc_id=dict(type='str', aliases=['id']),
         multi_ok=dict(type='bool', default=False),
         description=dict(type='str'),
diff --git a/lib/ansible/utils/module_docs_fragments/alicloud.py b/lib/ansible/utils/module_docs_fragments/alicloud.py
index 3c9294c4..2088c21c 100644
--- a/lib/ansible/utils/module_docs_fragments/alicloud.py
+++ b/lib/ansible/utils/module_docs_fragments/alicloud.py
@@ -83,6 +83,12 @@ class ModuleDocFragment(object):
         environment variable.
       - If this is not set and a profile is specified,  ~/.aliyun/config.json will be used.
     type: str
+  alicloud_protocol:
+    description:
+      - The type of protocol.
+    type: str
+    aliases: ['protocol']
+    default: https
 author:
     - "He Guimin (@xiaozhu36)"
 requirements: