diff --git a/tests/python_client/chaos/conftest.py b/tests/python_client/chaos/conftest.py
new file mode 100644
index 0000000000..8f34c78ae9
--- /dev/null
+++ b/tests/python_client/chaos/conftest.py
@@ -0,0 +1,33 @@
+import pytest
+
+
+def pytest_addoption(parser):
+    parser.addoption("--milvus_ns", action="store", default="chaos-testing", help="milvus_ns")
+    parser.addoption("--chaos_type", action="store", default="pod_kill", help="chaos_type")
+    parser.addoption("--target_component", action="store", default="querynode", help="target_component")
+    parser.addoption("--chaos_duration", action="store", default="1m", help="chaos_duration")
+    parser.addoption("--chaos_interval", action="store", default="10s", help="chaos_interval")
+
+
+@pytest.fixture
+def milvus_ns(request):
+    return request.config.getoption("--milvus_ns")
+
+@pytest.fixture
+def chaos_type(request):
+    return request.config.getoption("--chaos_type")
+
+
+@pytest.fixture
+def target_component(request):
+    return request.config.getoption("--target_component")
+
+
+@pytest.fixture
+def chaos_duration(request):
+    return request.config.getoption("--chaos_duration")
+
+
+@pytest.fixture
+def chaos_interval(request):
+    return request.config.getoption("--chaos_interval")
diff --git a/tests/python_client/chaos/test_chaos_apply.py b/tests/python_client/chaos/test_chaos_apply.py
new file mode 100644
index 0000000000..88c55df035
--- /dev/null
+++ b/tests/python_client/chaos/test_chaos_apply.py
@@ -0,0 +1,113 @@
+import threading
+import pytest
+import time
+from time import sleep
+from pathlib import Path
+from pymilvus import connections
+from common.cus_resource_opts import CustomResourceOperations as CusResource
+from common.milvus_sys import MilvusSys
+import logging as log
+from utils.util_k8s import wait_pods_ready, get_milvus_instance_name, get_milvus_deploy_tool
+from utils.util_common import update_key_value, update_key_name, gen_experiment_config
+import constants
+
+
+class TestChaosApply:
+
+    @pytest.fixture(scope="function", autouse=True)
+    def init_env(self, host, port, user, password, milvus_ns):
+        if user and password:
+            # log.info(f"connect to {host}:{port} with user {user} and password {password}")
+            connections.connect('default', host=host, port=port, user=user, password=password, secure=True)
+        else:
+            connections.connect('default', host=host, port=port)
+        if connections.has_connection("default") is False:
+            raise Exception("no connections")
+        #
+        self.host = host
+        self.port = port
+        self.user = user
+        self.password = password
+        self.milvus_sys = MilvusSys(alias='default')
+        self.chaos_ns = constants.CHAOS_NAMESPACE
+        self.milvus_ns = milvus_ns
+        self.release_name = get_milvus_instance_name(self.milvus_ns, milvus_sys=self.milvus_sys)
+        self.deploy_by = get_milvus_deploy_tool(self.milvus_ns, self.milvus_sys)
+
+    def reconnect(self):
+        if self.user and self.password:
+            connections.connect('default', host=self.host, port=self.port,
+                                user=self.user,
+                                password=self.password,
+                                secure=True)
+        else:
+            connections.connect('default', host=self.host, port=self.port)
+        if connections.has_connection("default") is False:
+            raise Exception("no connections")
+
+    def teardown(self):
+        chaos_res = CusResource(kind=self.chaos_config['kind'],
+                                group=constants.CHAOS_GROUP,
+                                version=constants.CHAOS_VERSION,
+                                namespace=constants.CHAOS_NAMESPACE)
+        meta_name = self.chaos_config.get('metadata', None).get('name', None)
+        chaos_res.delete(meta_name, raise_ex=False)
+        sleep(2)
+
+    def test_chaos_apply(self, chaos_type, target_component, chaos_duration, chaos_interval):
+        # start the monitor threads to check the milvus ops
+        log.info("*********************Chaos Test Start**********************")
+        log.info(connections.get_connection_addr('default'))
+        release_name = self.release_name
+        chaos_config = gen_experiment_config(
+            f"{str(Path(__file__).absolute().parent)}/chaos_objects/{chaos_type}/chaos_{target_component}_{chaos_type}.yaml")
+        chaos_config['metadata']['name'] = f"test-{target_component}-{chaos_type.replace('_','-')}-{int(time.time())}"
+        chaos_config['metadata']['namespace'] = self.chaos_ns
+        meta_name = chaos_config.get('metadata', None).get('name', None)
+        update_key_value(chaos_config, "release", release_name)
+        update_key_value(chaos_config, "app.kubernetes.io/instance", release_name)
+        update_key_value(chaos_config, "namespaces", [self.milvus_ns])
+        self.chaos_config = chaos_config
+        if "s" in chaos_interval:
+            schedule = f"*/{chaos_interval[:-1]} * * * * *"
+        if "m" in chaos_interval:
+            schedule = f"00 */{chaos_interval[:-1]} * * * *"
+        update_key_value(chaos_config, "schedule", schedule)
+        # update chaos_duration from string to int with unit second
+        chaos_duration = chaos_duration.replace('h', '*3600+').replace('m', '*60+').replace('s', '*1+') + '+0'
+        chaos_duration = eval(chaos_duration)
+        if self.deploy_by == "milvus-operator":
+            update_key_name(chaos_config, "component", "app.kubernetes.io/component")
+        self._chaos_config = chaos_config  # cache the chaos config for tear down
+        log.info(f"chaos_config: {chaos_config}")
+        # apply chaos object
+        chaos_res = CusResource(kind=chaos_config['kind'],
+                                group=constants.CHAOS_GROUP,
+                                version=constants.CHAOS_VERSION,
+                                namespace=constants.CHAOS_NAMESPACE)
+        chaos_res.create(chaos_config)
+        log.info("chaos injected")
+        res = chaos_res.list_all()
+        chaos_list = [r['metadata']['name'] for r in res['items']]
+        assert meta_name in chaos_list
+        res = chaos_res.get(meta_name)
+        log.info(f"chaos inject result: {res['kind']}, {res['metadata']['name']}")
+        sleep(chaos_duration)
+        # delete chaos
+        chaos_res.delete(meta_name)
+        log.info("chaos deleted")
+        res = chaos_res.list_all()
+        chaos_list = [r['metadata']['name'] for r in res['items']]
+        # verify the chaos is deleted
+        assert meta_name not in chaos_list
+        sleep(2)
+        # wait all pods ready
+        log.info(f"wait for pods in namespace {constants.CHAOS_NAMESPACE} with label app.kubernetes.io/instance={meta_name}")
+        wait_pods_ready(constants.CHAOS_NAMESPACE, f"app.kubernetes.io/instance={meta_name}")
+        log.info(f"wait for pods in namespace {constants.CHAOS_NAMESPACE} with label release={meta_name}")
+        wait_pods_ready(constants.CHAOS_NAMESPACE, f"release={meta_name}")
+        log.info("all pods are ready")
+        # reconnect to test the service healthy
+        sleep(20)
+        self.reconnect()
+        log.info("*********************Chaos Test Completed**********************")
diff --git a/tests/python_client/utils/util_common.py b/tests/python_client/utils/util_common.py
index 2c95b38c99..2b21048106 100644
--- a/tests/python_client/utils/util_common.py
+++ b/tests/python_client/utils/util_common.py
@@ -1,3 +1,12 @@
+from yaml import full_load
+
+
+def gen_experiment_config(yaml):
+    """load the yaml file of chaos experiment"""
+    with open(yaml) as f:
+        _config = full_load(f)
+        f.close()
+    return _config
 
 
 def findkeys(node, kv):
@@ -27,6 +36,21 @@ def update_key_value(node, modify_k, modify_v):
     return node
 
 
+def update_key_name(node, modify_k, modify_k_new):
+    # update the name of modify_k to modify_k_new
+    if isinstance(node, list):
+        for i in node:
+            update_key_name(i, modify_k, modify_k_new)
+    elif isinstance(node, dict):
+        if modify_k in node:
+            value_backup = node[modify_k]
+            del node[modify_k]
+            node[modify_k_new] = value_backup
+        for j in node.values():
+            update_key_name(j, modify_k, modify_k_new)
+    return node
+
+
 if __name__ == "__main__":
     d = { "id" : "abcde",
         "key1" : "blah",
diff --git a/tests/python_client/utils/util_k8s.py b/tests/python_client/utils/util_k8s.py
index a173279be2..0e7021f29e 100644
--- a/tests/python_client/utils/util_k8s.py
+++ b/tests/python_client/utils/util_k8s.py
@@ -26,6 +26,12 @@ def init_k8s_client_config():
         raise Exception(e)
 
 
+def get_current_namespace():
+    config.load_kube_config()
+    ns = config.list_kube_config_contexts()[1]["context"]["namespace"]
+    return ns
+
+
 def wait_pods_ready(namespace, label_selector, expected_num=None, timeout=360):
     """
     wait pods with label selector all ready
@@ -155,7 +161,7 @@ def get_querynode_id_pod_pairs(namespace, label_selector):
     return querynode_id_pod_pair
 
 
-def get_milvus_instance_name(namespace, host, port="19530"):
+def get_milvus_instance_name(namespace, host="127.0.0.1", port="19530", milvus_sys=None):
     """
     get milvus instance name after connection
 
@@ -172,20 +178,17 @@ def get_milvus_instance_name(namespace, host, port="19530"):
             "milvus-multi-querynode"
 
     """
-    connections.add_connection(_default={"host": host, "port": port})
-    connections.connect(alias='_default')
-    ms = MilvusSys()
+    if milvus_sys is None:
+        connections.add_connection(_default={"host": host, "port": port})
+        connections.connect(alias='_default')
+        ms = MilvusSys()
+    else:
+        ms = milvus_sys
     query_node_ip = ms.query_nodes[0]["infos"]['hardware_infos']["ip"].split(":")[0]
-    pod_name = ""
-    if ms.deploy_mode == "STANDALONE":
-        # get all pods which label is app.kubernetes.io/name=milvus and component=standalone
-        ip_name_pairs = get_pod_ip_name_pairs(namespace, "app.kubernetes.io/name=milvus, component=standalone")
-        pod_name = ip_name_pairs[query_node_ip]
-    if ms.deploy_mode == "DISTRIBUTED":
-        # get all pods which label is app.kubernetes.io/name=milvus and component=querynode
-        ip_name_pairs = get_pod_ip_name_pairs(namespace, "app.kubernetes.io/name=milvus, component=querynode")
-        pod_name = ip_name_pairs[query_node_ip]
-    init_k8s_client_config()
+    ip_name_pairs = get_pod_ip_name_pairs(namespace, "app.kubernetes.io/name=milvus")
+    pod_name = ip_name_pairs[query_node_ip]
+    
+    config.load_kube_config()
     api_instance = client.CoreV1Api()
     try:
         api_response = api_instance.read_namespaced_pod(namespace=namespace, name=pod_name)
@@ -196,6 +199,36 @@ def get_milvus_instance_name(namespace, host, port="19530"):
     return milvus_instance_name
 
 
+def get_milvus_deploy_tool(namespace, milvus_sys):
+    """
+    get milvus instance name after connection
+    :param namespace: the namespace where the release
+    :type namespace: str
+    :param milvus_sys: milvus_sys
+    :type namespace: MilvusSys
+    :example:
+            >>> deploy_tool = get_milvus_deploy_tool("chaos-testing", milvus_sys)
+            "helm"
+    """
+    ms = milvus_sys
+    query_node_ip = ms.query_nodes[0]["infos"]['hardware_infos']["ip"].split(":")[0]
+    ip_name_pairs = get_pod_ip_name_pairs(namespace, "app.kubernetes.io/name=milvus")
+    pod_name = ip_name_pairs[query_node_ip]
+    config.load_kube_config()
+    api_instance = client.CoreV1Api()
+    try:
+        api_response = api_instance.read_namespaced_pod(namespace=namespace, name=pod_name)
+    except ApiException as e:
+        log.error("Exception when calling CoreV1Api->list_namespaced_pod: %s\n" % e)
+        raise Exception(str(e))
+    if ("app.kubernetes.io/managed-by" in api_response.metadata.labels and
+        api_response.metadata.labels["app.kubernetes.io/managed-by"] == "milvus-operator"):
+        deploy_tool = "milvus-operator"
+    else:
+        deploy_tool = "helm"
+    return deploy_tool
+
+
 def export_pod_logs(namespace, label_selector, release_name=None):
     """
     export pod logs with label selector to '/tmp/milvus'