diff --git a/v2/demo/demo_config.py b/v2/demo/demo_config.py
new file mode 100644
index 0000000..fd31475
--- /dev/null
+++ b/v2/demo/demo_config.py
@@ -0,0 +1,90 @@
+import logging
+import time
+
+from v2.nacos.config.ilistener import Listener
+from v2.nacos.config.nacos_config_service import NacosConfigService
+
+SERVER_ADDRESSES = "http://127.0.0.1:8848"
+NAMESPACE = ""
+DATA_ID1 = "nacos_config_test1"
+DATA_ID2 = "nacos_config_test2"
+GROUP = "default"
+CONFIG_CONTENT = "content"
+CONFIG_TYPE = "text"
+TIMEOUT = 3000
+
+properties = {
+        "namespace": NAMESPACE,
+        "serverAddr": SERVER_ADDRESSES,
+        "username": "nacos",
+        "password": "nacos",
+        "endpoint": "",
+        "contextPath": "/nacos",
+        "ak": "nnn",
+        "sk": "nnn"
+    }
+
+logger = logging.getLogger("nacos")
+handler = logging.StreamHandler()
+handler.setFormatter(logging.Formatter("%(asctime)s %(levelname)s %(name)s:%(message)s"))
+logger.addHandler(handler)
+logger.setLevel(logging.DEBUG)
+
+logger.removeHandler(handler)
+
+
+class DemoListener(Listener):
+    def get_executor(self):
+        return
+
+    def receive_config_info(self, config_info: str):
+        print("receive_config_info:", config_info)
+
+
+if __name__ == '__main__':
+    config = NacosConfigService(logger, properties)
+    time.sleep(1)
+
+    # get server status
+    server_status = config.get_server_status()
+    print("server_status:", server_status)
+
+    # publish config
+    publish_config = config.publish_config(DATA_ID1, GROUP, CONFIG_CONTENT, CONFIG_TYPE)
+    print("publish_config:", str(publish_config))
+    time.sleep(1)
+
+    # publish config cas
+    publish_config_cas = config.publish_config_cas(DATA_ID2, GROUP, CONFIG_CONTENT, "", CONFIG_TYPE)
+    print("publish_config_cas:", str(publish_config_cas))
+    time.sleep(1)
+
+    # get config
+    config_content = config.get_config(DATA_ID1, GROUP, TIMEOUT)
+    print("get_config:", config_content)
+
+    # add listener
+    demo_listener = DemoListener()
+    config.add_listener(DATA_ID1, GROUP, demo_listener)
+    print("add_listener complete")
+    time.sleep(1)
+
+    # remove listener
+    config.remove_listener(DATA_ID1, GROUP, demo_listener)
+    print("remove_listener complete")
+    time.sleep(1)
+
+    # get config and sign listener
+    config_content_2 = config.get_config_and_sign_listener(DATA_ID1, GROUP, TIMEOUT, demo_listener)
+    print("get_config_and_sign_listener:", config_content_2)
+    time.sleep(1)
+
+    # remove config
+    remove_config = config.remove_config(DATA_ID1, GROUP)
+    print("remove_config:", str(remove_config))
+    time.sleep(1)
+
+    # shutdown
+    time.sleep(5)
+    config.shutdown()
+    print("shutdown")
diff --git a/v2/demo/demo_naming.py b/v2/demo/demo_naming.py
index 2e4fce3..410a359 100644
--- a/v2/demo/demo_naming.py
+++ b/v2/demo/demo_naming.py
@@ -7,7 +7,6 @@
 from v2.nacos.naming.nacos_naming_service import NacosNamingService
 
 SERVER_ADDRESSES = "http://127.0.0.1:8848"
-# SERVER_ADDRESSES = "http://10.62.188.68:8848"
 NAMESPACE = "public"
 
 properties = {
@@ -59,4 +58,28 @@ def on_event(self, event) -> None:
     print("list_view:", str(list_view))
 
     # subscribe
-    naming.subscribe("nacos.test.2", "default", [], DemoListener())
+    demo_listener = DemoListener()
+    naming.subscribe("nacos.test.2", "default", [], demo_listener)
+
+    # select one healthy instance
+    one_healthy_instance = naming.select_one_healthy_instance("nacos.test.2", "default", [], True)
+    print("select one healthy instance:", str(one_healthy_instance))
+
+    # get server status
+    server_status = naming.get_server_status()
+    time.sleep(1)
+    print("server_status:", server_status)
+
+    # unsubscribe
+    naming.unsubscribe("nacos.test.2", "default", [], demo_listener)
+    time.sleep(1)
+    print("unsubscribed!")
+
+    # deregister instance
+    naming.deregister_instance("nacos.test.2", "default", "11.11.11.11", 8888, "DEFAULT")
+    time.sleep(1)
+    print("deregister instance!")
+
+    # shutdown
+    naming.shutdown()
+    print("shutdown")
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