diff --git a/python/paddle/fluid/tests/unittests/mkldnn/test_conv2d_mkldnn_op.py b/python/paddle/fluid/tests/unittests/mkldnn/test_conv2d_mkldnn_op.py
index 69d2d23b1adf84b80fc6936b28c03808f94d693c..777b1a267427e552dddcce7be9423ee857d62fe6 100644
--- a/python/paddle/fluid/tests/unittests/mkldnn/test_conv2d_mkldnn_op.py
+++ b/python/paddle/fluid/tests/unittests/mkldnn/test_conv2d_mkldnn_op.py
@@ -44,6 +44,7 @@ class TestConv2dMKLDNNOp(TestConv2dOp):
         self.data_format = "NCHW"
         self.use_mkldnn = True
         self._cpu_only = True
+        self.dtype = np.float32
 
     def init_test_case(self):
         self.pad = [0, 0]
@@ -62,6 +63,7 @@ class TestConv2dMKLDNNOp(TestConv2dOp):
         self.fuse_brelu_threshold = 6.0
         self.fuse_residual_connection = False
         self.input_residual_size = None
+
         TestConv2dOp.setUp(self)
 
         output = self.outputs['Output']
@@ -179,6 +181,7 @@ class TestWithInput1x1Filter1x1(TestConv2dMKLDNNOp):
 class TestConv2dOp_AsyPadding_MKLDNN(TestConv2dOp_v2):
     def init_kernel_type(self):
         self.use_mkldnn = True
+        self.dtype = np.float32
 
     def init_paddings(self):
         self.pad = [0, 0, 1, 2]
diff --git a/python/paddle/fluid/tests/unittests/mkldnn/test_conv3d_mkldnn_op.py b/python/paddle/fluid/tests/unittests/mkldnn/test_conv3d_mkldnn_op.py
index a54640da7798dbc5d1d206ee25616781f069c3a9..8f310946db293d891a3b03d983f37e3667cd284f 100644
--- a/python/paddle/fluid/tests/unittests/mkldnn/test_conv3d_mkldnn_op.py
+++ b/python/paddle/fluid/tests/unittests/mkldnn/test_conv3d_mkldnn_op.py
@@ -15,7 +15,7 @@
 from __future__ import print_function
 
 import unittest
-
+import numpy as np
 from paddle.fluid.tests.unittests.test_conv3d_op import TestConv3dOp, TestCase1, TestWithGroup1, TestWithGroup2, TestWith1x1, TestWithInput1x1Filter1x1, TestConv3dOp_2
 
 
@@ -23,42 +23,49 @@ class TestMKLDNN(TestConv3dOp):
     def init_kernel_type(self):
         self.use_mkldnn = True
         self.data_format = "NCHW"
+        self.dtype = np.float32
 
 
 class TestMKLDNNCase1(TestCase1):
     def init_kernel_type(self):
         self.use_mkldnn = True
         self.data_format = "NCHW"
+        self.dtype = np.float32
 
 
 class TestMKLDNNGroup1(TestWithGroup1):
     def init_kernel_type(self):
         self.use_mkldnn = True
         self.data_format = "NCHW"
+        self.dtype = np.float32
 
 
 class TestMKLDNNGroup2(TestWithGroup2):
     def init_kernel_type(self):
         self.use_mkldnn = True
         self.data_format = "NCHW"
+        self.dtype = np.float32
 
 
 class TestMKLDNNWith1x1(TestWith1x1):
     def init_kernel_type(self):
         self.use_mkldnn = True
         self.data_format = "NCHW"
+        self.dtype = np.float32
 
 
 class TestMKLDNNWithInput1x1Filter1x1(TestWithInput1x1Filter1x1):
     def init_kernel_type(self):
         self.use_mkldnn = True
         self.data_format = "NCHW"
+        self.dtype = np.float32
 
 
 class TestConv3dOp_AsyPadding_MKLDNN(TestConv3dOp):
     def init_kernel_type(self):
         self.use_mkldnn = True
         self.data_format = "NCHW"
+        self.dtype = np.float32
 
     def init_paddings(self):
         self.pad = [1, 0, 1, 0, 0, 2]
@@ -70,12 +77,22 @@ class TestConv3dOp_Same_MKLDNN(TestConv3dOp_AsyPadding_MKLDNN):
         self.pad = [0, 0, 0]
         self.padding_algorithm = "SAME"
 
+    def init_kernel_type(self):
+        self.use_mkldnn = True
+        self.data_format = "NCHW"
+        self.dtype = np.float32
+
 
 class TestConv3dOp_Valid_MKLDNN(TestConv3dOp_AsyPadding_MKLDNN):
     def init_paddings(self):
         self.pad = [1, 1, 1]
         self.padding_algorithm = "VALID"
 
+    def init_kernel_type(self):
+        self.use_mkldnn = True
+        self.data_format = "NCHW"
+        self.dtype = np.float32
+
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/python/paddle/fluid/tests/unittests/test_conv2d_op.py b/python/paddle/fluid/tests/unittests/test_conv2d_op.py
index 70dda1ccdcf515fef613815ee5e1eefa5a2485db..2285f3ee830e35068de1b47f9d6968d1291c17ef 100644
--- a/python/paddle/fluid/tests/unittests/test_conv2d_op.py
+++ b/python/paddle/fluid/tests/unittests/test_conv2d_op.py
@@ -298,7 +298,7 @@ class TestConv2dOp(OpTest):
         self.use_mkldnn = False
         self.fuse_relu_before_depthwise_conv = False
         self.data_format = "AnyLayout"
-        self.dtype = np.float32
+        self.dtype = np.float64
         self.init_kernel_type()
         self.init_group()
         self.init_dilation()
@@ -723,7 +723,7 @@ class TestConv2dOp_v2(OpTest):
         self.use_cuda = False
         self.use_mkldnn = False
         self.fuse_relu_before_depthwise_conv = False
-        self.dtype = np.float32
+        self.dtype = np.float64
         self.init_kernel_type()
         self.init_group()
         self.init_dilation()
diff --git a/python/paddle/fluid/tests/unittests/test_conv3d_op.py b/python/paddle/fluid/tests/unittests/test_conv3d_op.py
index d83da2ce150bb3359abbe25073a28dfd76cd33e6..0f3677daa87413f4be019f89f92ef581c67c4358 100644
--- a/python/paddle/fluid/tests/unittests/test_conv3d_op.py
+++ b/python/paddle/fluid/tests/unittests/test_conv3d_op.py
@@ -234,7 +234,7 @@ class TestConv3dOp(OpTest):
         self.use_cudnn = False
         self.use_mkldnn = False
         self.data_format = "AnyLayout"
-        self.dtype = np.float32
+        self.dtype = np.float64
         self.init_kernel_type()
         self.init_group()
         self.init_dilation()
@@ -525,7 +525,7 @@ class TestConv3dOp_2(OpTest):
         self.use_cudnn = False
         self.use_mkldnn = False
         self.data_format = "NCDHW"
-        self.dtype = np.float32
+        self.dtype = np.float64
         self.init_kernel_type()
         self.init_group()
         self.init_dilation()