diff --git a/paddle/fluid/operators/ngraph/ops/activation_op.h b/paddle/fluid/operators/ngraph/ops/activation_op.h
index 4e654293c596dd9fa6b763ed8fa41e1497113bd7..884ec659267a5386b5715b9f8b38be8900123823 100644
--- a/paddle/fluid/operators/ngraph/ops/activation_op.h
+++ b/paddle/fluid/operators/ngraph/ops/activation_op.h
@@ -113,6 +113,5 @@ void BuildTanhGradNode(
 REGISTER_NG_OP(gelu, BuildGeluNode);
 REGISTER_NG_OP(gelu_grad, BuildGeluGradNode);
 REGISTER_NG_OP(relu_grad, BuildReluGradNode);
-REGISTER_NG_OP(sqrt, BuildUnaryNode<ngraph::op::Sqrt>);
 REGISTER_NG_OP(square, BuildSquareNode);
 REGISTER_NG_OP(tanh_grad, BuildTanhGradNode);
diff --git a/python/paddle/fluid/tests/unittests/ngraph/test_activation_ngraph_op.py b/python/paddle/fluid/tests/unittests/ngraph/test_activation_ngraph_op.py
index 1a8a41f3c829c0b5c2310867b4e94cfab58d215f..a7f167cbd415c9000311aa45bef0432f61e668ea 100644
--- a/python/paddle/fluid/tests/unittests/ngraph/test_activation_ngraph_op.py
+++ b/python/paddle/fluid/tests/unittests/ngraph/test_activation_ngraph_op.py
@@ -18,7 +18,7 @@ import unittest
 import numpy as np
 import paddle.fluid.core as core
 from paddle.fluid.tests.unittests.op_test import OpTest
-from paddle.fluid.tests.unittests.test_activation_op import TestAbs, TestGelu, TestSigmoid, TestSqrt, TestSquare, TestRelu, TestTanh
+from paddle.fluid.tests.unittests.test_activation_op import TestAbs, TestGelu, TestSigmoid, TestSquare, TestRelu, TestTanh
 
 
 class TestNGRAPHReluDim4(TestRelu):