diff --git a/python/paddle/fluid/tests/unittests/ngraph/test_scale_ngraph_op.py b/python/paddle/fluid/tests/unittests/ngraph/test_scale_ngraph_op.py
index 8beb44f55e487eef5f1957e9284d4a711c9770aa..abeb9295946b6cc9a7f313997ab99901bcfd7bb4 100644
--- a/python/paddle/fluid/tests/unittests/ngraph/test_scale_ngraph_op.py
+++ b/python/paddle/fluid/tests/unittests/ngraph/test_scale_ngraph_op.py
@@ -11,9 +11,11 @@
 # 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.
+
 from __future__ import print_function
-import unittest
-from paddle.fluid.tests.unittests.test_scale_op import TestScaleOp, TestScaleOpSelectedRows
+import unittest, sys
+sys.path.append("../")
+from test_scale_op import TestScaleOp, TestScaleOpSelectedRows
 
 if __name__ == "__main__":
     unittest.main()
diff --git a/python/paddle/fluid/tests/unittests/ngraph/test_softmax_ngraph_op.py b/python/paddle/fluid/tests/unittests/ngraph/test_softmax_ngraph_op.py
index 09c52e2b1084fc5f716a6d1abfb4968d2c5460da..4b895f81a8991c3f83bc2c8e2866634bd24764f1 100644
--- a/python/paddle/fluid/tests/unittests/ngraph/test_softmax_ngraph_op.py
+++ b/python/paddle/fluid/tests/unittests/ngraph/test_softmax_ngraph_op.py
@@ -13,8 +13,9 @@
 # limitations under the License.
 
 from __future__ import print_function
-import unittest
-from paddle.fluid.tests.unittests.test_softmax_op import TestSoftmaxOp, TestSoftmaxOp2, TestSoftmaxOp3, TestSoftmaxOp4, TestSoftmaxOp5
+import unittest, sys
+sys.path.append("../")
+from test_softmax_op import TestSoftmaxOp, TestSoftmaxOp2, TestSoftmaxOp3, TestSoftmaxOp4, TestSoftmaxOp5
 
 if __name__ == "__main__":
     unittest.main()
diff --git a/python/paddle/fluid/tests/unittests/ngraph/test_softmax_with_cross_entropy_ngraph_op.py b/python/paddle/fluid/tests/unittests/ngraph/test_softmax_with_cross_entropy_ngraph_op.py
index 86961b8c366c69a210e47ab5d1ece6ba85d1d262..6dab134c68ddf36c0be47d49b0515621a7e7f6f4 100644
--- a/python/paddle/fluid/tests/unittests/ngraph/test_softmax_with_cross_entropy_ngraph_op.py
+++ b/python/paddle/fluid/tests/unittests/ngraph/test_softmax_with_cross_entropy_ngraph_op.py
@@ -13,8 +13,9 @@
 # limitations under the License.
 
 from __future__ import print_function
-import unittest
-from paddle.fluid.tests.unittests.test_softmax_with_cross_entropy_op import TestSoftmaxWithCrossEntropyOp, TestSoftmaxWithCrossEntropyOp2, TestSoftmaxWithCrossEntropyOp3
+import unittest, sys
+sys.path.append("../")
+from test_softmax_with_cross_entropy_op import TestSoftmaxWithCrossEntropyOp, TestSoftmaxWithCrossEntropyOp2, TestSoftmaxWithCrossEntropyOp3
 
 if __name__ == "__main__":
     unittest.main()
diff --git a/python/paddle/fluid/tests/unittests/ngraph/test_sum_ngraph_op.py b/python/paddle/fluid/tests/unittests/ngraph/test_sum_ngraph_op.py
index ed9fb618024301818a12fd0d02b09c6f3a5f2c53..acccf584660f127a615d43f5b16d9a5205382dc9 100644
--- a/python/paddle/fluid/tests/unittests/ngraph/test_sum_ngraph_op.py
+++ b/python/paddle/fluid/tests/unittests/ngraph/test_sum_ngraph_op.py
@@ -11,9 +11,11 @@
 # 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.
+
 from __future__ import print_function
-import unittest
-from paddle.fluid.tests.unittests.test_sum_op import TestSumOp, TestSelectedRowsSumOp, TestLoDTensorAndSelectedRowsOp
+import unittest, sys
+sys.path.append("../")
+from test_sum_op import TestSumOp, TestSelectedRowsSumOp, TestLoDTensorAndSelectedRowsOp
 
 if __name__ == "__main__":
     unittest.main()
diff --git a/python/paddle/fluid/tests/unittests/ngraph/test_top_k_ngraph_op.py b/python/paddle/fluid/tests/unittests/ngraph/test_top_k_ngraph_op.py
index d2319c4d921fccb950b1a3059fdecd3b3b044182..d80c72ee322e073878336cfec255eb1d9bcceaed 100644
--- a/python/paddle/fluid/tests/unittests/ngraph/test_top_k_ngraph_op.py
+++ b/python/paddle/fluid/tests/unittests/ngraph/test_top_k_ngraph_op.py
@@ -13,8 +13,9 @@
 # limitations under the License.
 from __future__ import print_function
 
-import unittest
-from paddle.fluid.tests.unittests.test_top_k_op import TestTopkOp, TestTopkOp3d, TestTopkOp2, TestTopkOp3, TestTopkOp4
+import unittest, sys
+sys.path.append("../")
+from test_top_k_op import TestTopkOp, TestTopkOp3d, TestTopkOp2, TestTopkOp3, TestTopkOp4
 
 if __name__ == "__main__":
     unittest.main()