diff --git a/test/ir/pir/cinn/test_dynamic_shape.py b/test/ir/pir/cinn/test_dynamic_shape.py
new file mode 100644
index 00000000000000..f099bc3284452a
--- /dev/null
+++ b/test/ir/pir/cinn/test_dynamic_shape.py
@@ -0,0 +1,119 @@
+# Copyright (c) 2024 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+import os
+import unittest
+
+import numpy
+
+os.environ['FLAGS_cinn_new_group_scheduler'] = '1'
+os.environ['FLAGS_group_schedule_tiling_first'] = '1'
+os.environ['FLAGS_prim_all'] = 'true'
+os.environ['FLAGS_prim_enable_dynamic'] = 'true'
+os.environ['FLAGS_print_ir'] = '1'
+os.environ['FLAGS_enable_pir_api'] = '1'
+os.environ['FLAGS_use_cinn'] = '1'
+os.environ['FLAGS_cinn_bucket_compile'] = '1'
+os.environ['FLAGS_cinn_new_cluster_op_method'] = '1'
+os.environ['FLAGS_deny_cinn_ops'] = 'slice;'
+
+import paddle
+
+build_strategy = paddle.static.BuildStrategy()
+build_strategy.build_cinn_pass = True
+
+
+def generate_input_spec(rank_dtype_list):
+    input_spec = []
+    for rank, dtype in rank_dtype_list:
+        input_spec.append(
+            paddle.static.InputSpec(shape=[None] * rank, dtype=dtype)
+        )
+    return input_spec
+
+
+class TestTrivialFusion(unittest.TestCase):
+    def setUp(self):
+        pass
+
+    def tearDown(self):
+        pass
+
+    def compare_result(self, dy_compute, input_spec, data_init):
+        inputs = data_init()
+        dy_out = dy_compute(*inputs)
+        static_compute = paddle.jit.to_static(
+            full_graph=True,
+            build_strategy=build_strategy,
+            input_spec=input_spec,
+        )(dy_compute)
+        st_out = static_compute(*inputs)
+        numpy.testing.assert_allclose(dy_out, st_out, atol=1e-5, rtol=1e-6)
+
+    def test_simple_trivial_fusions(self):
+        def func(x):
+            x = x * 2
+            x = x + 1
+            x = paddle.nn.functional.relu(x)
+            x = paddle.transpose(x, perm=[0, 2, 1])
+            x = x.reshape((-1, 128))
+            return x
+
+        def init():
+            x = paddle.rand((32, 32, 128))
+            return (x,)
+
+        input_spec = generate_input_spec([(3, 'float32')])
+        self.compare_result(func, input_spec, init)
+
+    def test_trivial_fusion_slice_and_concat(self):
+        def func(x, y):
+            x = x * 2
+            y = y * 2
+            x = x[:, :, :64]
+            y = y[:, :, :64]
+            z = paddle.concat([x, y], axis=-1)
+            return z
+
+        def init():
+            x = paddle.rand((32, 32, 128))
+            y = paddle.rand((32, 32, 128))
+            return (x, y)
+
+        input_spec = generate_input_spec([(3, 'float32'), (3, 'float32')])
+        self.compare_result(func, input_spec, init)
+
+    def test_trivial_fusion_gather_nd(self):
+        def func(x, y):
+            x = x * 2
+            output = paddle.gather_nd(x, y)
+            return output
+
+        def init():
+            x = paddle.to_tensor(
+                [[[1, 2], [3, 4], [5, 6]], [[7, 8], [9, 10], [11, 12]]]
+            )
+            index = paddle.to_tensor([[0, 1]])
+            return (x, index)
+
+        input_spec = [
+            paddle.static.InputSpec(shape=[None, None, None], dtype='float32'),
+            paddle.static.InputSpec(shape=[None, 2], dtype='int32'),
+        ]
+        self.compare_result(func, input_spec, init)
+
+
+if __name__ == "__main__":
+    unittest.main()