diff --git a/__init__.py b/__init__.py
new file mode 100644
index 0000000..0b76a19
--- /dev/null
+++ b/__init__.py
@@ -0,0 +1,4 @@
+from .milvus_client import MilvusClient
+
+def milvus_client(*args, **kwargs):
+    return MilvusClient(*args, **kwargs)
diff --git a/milvus_client.py b/milvus_client.py
new file mode 100644
index 0000000..e2c81dc
--- /dev/null
+++ b/milvus_client.py
@@ -0,0 +1,44 @@
+import uuid
+import logging
+from towhee.operator import PyOperator
+from pymilvus import connections, Collection
+
+
+logger = logging.getLogger()
+
+
+class MilvusClient(PyOperator):
+    """
+    Milvus ANN index class.
+    """
+
+    def __init__(self, host: str, port: int, collection_name: str):
+        """
+        Get an existing collection.
+        """
+        self._host = host
+        self._port = port
+        self._collection_name = collection_name
+        self._connect_name = uuid.uuid4().hex
+        connections.connect(alias=self._connect_name, host=self._host, port=self._port)
+        self._collection = Collection(self._collection_name, using=self._connect_name)
+
+    def __call__(self, *data):
+        """
+        Insert data to Milvus.
+
+        Args:
+        data (`list`):
+            The data to insert into milvus.
+
+        Returns:
+            A MutationResult object contains `insert_count` represents how many and a `primary_keys` of primary keys.
+
+        """
+        vectors = []
+        for v in data:
+            vectors.append(v if isinstance(v, list) else [v])
+        mr = self._collection.insert(vectors)
+        if mr.err_count > 0:
+            raise RuntimeError("Insert to milvus failed")
+        return None
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..e0472f0
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+pymilvus