diff --git a/test/test_fake_tensor.py b/test/test_fake_tensor.py
index a67833ff803038017202a5081164acf146d5dad9..6c9dbf9ab921d715096e8515f6c4a662d04ed8a6 100644
--- a/test/test_fake_tensor.py
+++ b/test/test_fake_tensor.py
@@ -1493,6 +1493,15 @@ class TestAntiQuant(TestCase):
             x = x.to(dstType)
             self.assertTrue(x.numel() * x.element_size() == res.numel() * res.element_size())
 
+class TestRFFT(TestCase):
+    def test_npu_rfft(self):
+        with FakeTensorMode():
+            shape = [64,64,1024]
+            length = shape[-1]
+            x = torch.randn(shape, dtype=torch.float32).npu()
+            res = torch.fft.rfft(x, length, norm = "backward") 
+            self.assertTrue(res.shape[2] == (length / 2 + 1))
+
 instantiate_parametrized_tests(FakeTensorTest)
 instantiate_device_type_tests(FakeTensorOpInfoTest, globals(), only_for="cpu")