diff --git a/tests/test_pipeline.py b/tests/test_pipeline.py
new file mode 100644
index 000000000..5c1f5f86a
--- /dev/null
+++ b/tests/test_pipeline.py
@@ -0,0 +1,15 @@
+import unittest
+import hanlp
+
+
+class TestPipeLine(unittest.TestCase):
+    def test_copy(self):
+        pipe = hanlp.pipeline().append(hanlp.utils.rules.split_sentence)
+        copied_pipe = pipe.copy()
+        test_text = "今天天气真好。我要去散步。"
+        assert pipe is not copied_pipe
+        copied_pipe.append(lambda sent: "".join(sent))
+        assert pipe(test_text) != copied_pipe(test_text)
+
+if __name__ == '__main__':
+    unittest.main()