diff --git a/python/paddle/fluid/tests/unittests/test_elementwise_max_op.py b/python/paddle/fluid/tests/unittests/test_elementwise_max_op.py
index acb45d547339885dffce50667cfb581a4a02c048..efe9188627190c42b6128c7fa09ad216118135d6 100644
--- a/python/paddle/fluid/tests/unittests/test_elementwise_max_op.py
+++ b/python/paddle/fluid/tests/unittests/test_elementwise_max_op.py
@@ -35,7 +35,7 @@ class TestElementwiseOp(OpTest):
         self.check_output()
 
     def test_check_grad_normal(self):
-        self.check_grad(['X', 'Y'], 'Out', max_relative_error=0.005)
+        self.check_grad(['X', 'Y'], 'Out')
 
     def test_check_grad_ingore_x(self):
         self.check_grad(
diff --git a/python/paddle/fluid/tests/unittests/test_elementwise_min_op.py b/python/paddle/fluid/tests/unittests/test_elementwise_min_op.py
index 19d139f305d840b1e29df48cd696fed584f64594..a25b5994a6205be785d6b12d7e92a0d6c37bd9b7 100644
--- a/python/paddle/fluid/tests/unittests/test_elementwise_min_op.py
+++ b/python/paddle/fluid/tests/unittests/test_elementwise_min_op.py
@@ -35,7 +35,7 @@ class TestElementwiseOp(OpTest):
         self.check_output()
 
     def test_check_grad_normal(self):
-        self.check_grad(['X', 'Y'], 'Out', max_relative_error=0.005)
+        self.check_grad(['X', 'Y'], 'Out')
 
     def test_check_grad_ingore_x(self):
         self.check_grad(
diff --git a/python/paddle/fluid/tests/unittests/test_elementwise_sub_op.py b/python/paddle/fluid/tests/unittests/test_elementwise_sub_op.py
index 2e82f8dd41cc2549ff7ef0bc3838a1f2058a7ee7..5a5e47f163c153ee842ba3d7f3781d1eb35084aa 100644
--- a/python/paddle/fluid/tests/unittests/test_elementwise_sub_op.py
+++ b/python/paddle/fluid/tests/unittests/test_elementwise_sub_op.py
@@ -31,7 +31,7 @@ class TestElementwiseOp(OpTest):
         self.check_output()
 
     def test_check_grad_normal(self):
-        self.check_grad(['X', 'Y'], 'Out', max_relative_error=0.005)
+        self.check_grad(['X', 'Y'], 'Out')
 
     def test_check_grad_ingore_x(self):
         self.check_grad(
diff --git a/python/paddle/fluid/tests/unittests/test_fused_elemwise_activation_op.py b/python/paddle/fluid/tests/unittests/test_fused_elemwise_activation_op.py
index d371acc117ed084d9450e9f25eed0cb01a51c360..e00dc8c7688d6f8ef88d1bbe2a1c82d498f6c55b 100644
--- a/python/paddle/fluid/tests/unittests/test_fused_elemwise_activation_op.py
+++ b/python/paddle/fluid/tests/unittests/test_fused_elemwise_activation_op.py
@@ -90,9 +90,9 @@ def create_test_class(test_case,
             if not grad_chek:
                 return
             if self.attrs["save_intermediate_out"]:
-                self.check_grad(['X', 'Y'], ['Out'], max_relative_error=0.005)
+                self.check_grad(['X', 'Y'], ['Out'])
             else:
-                self.check_grad(['X', 'Y'], ['Out'], max_relative_error=0.005)
+                self.check_grad(['X', 'Y'], ['Out'])
 
         def test_check_grad_ingore_x(self):
             if not grad_chek:
diff --git a/python/paddle/fluid/tests/unittests/test_sequence_topk_avg_pooling.py b/python/paddle/fluid/tests/unittests/test_sequence_topk_avg_pooling.py
index 0311421141c067ad7775218cae0b2549956df74b..840997d4a19671872e7a6fbd815f7886f6b02097 100644
--- a/python/paddle/fluid/tests/unittests/test_sequence_topk_avg_pooling.py
+++ b/python/paddle/fluid/tests/unittests/test_sequence_topk_avg_pooling.py
@@ -116,7 +116,7 @@ class TestSequenceTopkAvgPoolingOp(OpTest):
         self.check_output()
 
     def test_check_grad(self):
-        self.check_grad(['X'], 'Out', max_relative_error=0.005)
+        self.check_grad(['X'], 'Out')
 
 
 class TestSequenceTopkAvgPoolingOpCase1(TestSequenceTopkAvgPoolingOp):