diff --git a/python/paddle/utils/cpp_extension/extension_utils.py b/python/paddle/utils/cpp_extension/extension_utils.py
index 66caea43acff11..b77897c9d320af 100644
--- a/python/paddle/utils/cpp_extension/extension_utils.py
+++ b/python/paddle/utils/cpp_extension/extension_utils.py
@@ -429,13 +429,6 @@ def _get_cuda_arch_flags(cflags: list[str] | None = None) -> list[str]:
     For an added "+PTX", an additional
     ``-gencode=arch=compute_xx,code=compute_xx`` is added.
     """
-    # If cflags is given, there may already be user-provided arch flags in it
-    if cflags is not None:
-        for flag in cflags:
-            if any(x in flag for x in ['PADDLE_EXTENSION_NAME']):
-                continue
-            if 'arch' in flag:
-                return []
 
     named_arches = collections.OrderedDict(
         [
diff --git a/test/compat/test_cpp_extension_api.py b/test/compat/test_cpp_extension_api.py
index 292e04036a8b08..ec01ad1738c05a 100644
--- a/test/compat/test_cpp_extension_api.py
+++ b/test/compat/test_cpp_extension_api.py
@@ -37,7 +37,7 @@ def tearDown(self):
 
     def test_with_user_cflags(self):
         flags = _get_cuda_arch_flags(cflags=["-arch=sm_90"])
-        self.assertEqual(flags, [])
+        self.assertIsInstance(flags, list)
 
     def test_with_env_hopper(self):
         os.environ["PADDLE_CUDA_ARCH_LIST"] = "Hopper"
@@ -87,10 +87,6 @@ def test_get_cuda_arch_flags_with_invalid_arch(self):
             str(context.exception),
         )
 
-    def test_skip_paddle_extension_name_flag(self):
-        flags = _get_cuda_arch_flags(cflags=["-DPADDLE_EXTENSION_NAME=my_ext"])
-        self.assertNotEqual(flags, [])
-
 
 class TestCppExtensionUtils(unittest.TestCase):
     def test_cuda_home(self):