diff --git a/tf_adapter/python/npu_bridge/experimental/hccl.py b/tf_adapter/python/npu_bridge/experimental/hccl.py
new file mode 100644
index 0000000000000000000000000000000000000000..2259a2b5e9fec77fb3b83465b0fd997317549153
--- /dev/null
+++ b/tf_adapter/python/npu_bridge/experimental/hccl.py
@@ -0,0 +1,31 @@
+import os
+import ctypes
+
+def load_lib(lib_name):
+    try:
+        lib = ctypes.CDLL(lib_name)
+    except Exception as e:
+        raise ValueError('load lib ', lib_name, ' error')
+
+    return lib
+
+hccl_graph_adp_ctypes = load_lib('libhcom_graph_adaptor.so')
+
+def c_str(string):
+    return ctypes.c_char_p(string.encode('utf-8'))
+
+def get_actual_rank_size(group="hccl_world_group"):
+    c_group = c_str(group)
+    c_rank_size = ctypes.c_uint()
+    ret = hccl_graph_adp_ctypes.HcomGetActualRankSize(c_group, ctypes.byref(c_rank_size))
+    if ret != 0:
+        raise ValueError('get actual rank size error.')
+    return c_rank_size.value
+
+def get_user_rank_size():
+    rank_size = int(os.getenv('RANK_SIZE'))
+    return rank_size
+
+def get_user_rank_id():
+    rank_id = int(os.getenv('RANK_ID'))
+    return rank_id
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