diff --git a/python/paddle_fl/mpc/tests/unittests/op_test.py b/python/paddle_fl/mpc/tests/unittests/op_test.py
index 9064074c6e68479ffb2fa22b343b1d56f75ea714..50e2b5409380b04d01f5340d77b06bdf9153e18e 100644
--- a/python/paddle_fl/mpc/tests/unittests/op_test.py
+++ b/python/paddle_fl/mpc/tests/unittests/op_test.py
@@ -140,13 +140,13 @@ class OpTest(unittest.TestCase):
 
         target = kwargs['target']
 
-        partys = []
+        parties = []
 
         for role in range(self.party_num):
             kwargs.update({'role': role})
-            partys.append(Aby3Process(target=target, kwargs=kwargs))
-            partys[-1].start()
-        for party in partys:
+            parties.append(Aby3Process(target=target, kwargs=kwargs))
+            parties[-1].start()
+        for party in parties:
             party.join()
             if party.exception:
                 return party.exception
diff --git a/python/paddle_fl/mpc/tests/unittests/test_op_base.py b/python/paddle_fl/mpc/tests/unittests/test_op_base.py
index 3f41f69d2fda9c89a77334b182bfb7e966145fb2..3ca84d843e9a9e54b01d4e566f75bf9f161e759f 100644
--- a/python/paddle_fl/mpc/tests/unittests/test_op_base.py
+++ b/python/paddle_fl/mpc/tests/unittests/test_op_base.py
@@ -77,13 +77,13 @@ class TestOpBase(unittest.TestCase):
         """
         target = kwargs['target']
 
+        parties = []
         for role in range(self.party_num):
             kwargs.update({'role': role})
-            party = Aby3Process(target=target, kwargs=kwargs)
-            party.start()
-            if role == self.party_num - 1:
-                party.join()
-                if party.exception:
-                    return party.exception
-                else:
-                    return (True,)
+            parties.append(Aby3Process(target=target, kwargs=kwargs))
+            parties[-1].start()
+        for party in parties:
+            party.join()
+            if party.exception:
+                return party.exception
+        return (True,)
diff --git a/python/paddle_fl/mpc/tests/unittests/test_op_conv.py b/python/paddle_fl/mpc/tests/unittests/test_op_conv.py
index ee45be251f65f02ffffad813d9360cab9118d546..307c6367eda654ea519928b524db661195a678aa 100644
--- a/python/paddle_fl/mpc/tests/unittests/test_op_conv.py
+++ b/python/paddle_fl/mpc/tests/unittests/test_op_conv.py
@@ -19,10 +19,10 @@ import unittest
 from multiprocessing import Manager
 import numpy as np
 
-
 import test_op_base
 from op_test import OpTest
 import paddle_fl.mpc.data_utils.aby3 as aby3
+import mpc_data_utils as mdu
 
 import paddle.fluid as fluid
 import paddle.fluid.core as core
@@ -190,7 +190,7 @@ class TestConv2dOp(OpTest):
             'dilation': self.dilations
         }
 
-        share = lambda x: np.array([x * 65536/3] * 2).astype('int64')
+        share = lambda x: np.array([x * mdu.mpc_one_share] * 2).astype('int64')
 
         input = np.random.random(self.input_size)
         filter = np.random.uniform(-1, 1, self.filter_size)
@@ -385,7 +385,7 @@ class TestConv2dOp_v2(OpTest):
             'dilation': self.dilations
         }
 
-        share = lambda x: np.array([x * 65536/3] * 2).astype('int64')
+        share = lambda x: np.array([x * mdu.mpc_one_share] * 2).astype('int64')
 
         input = np.random.random(self.input_size)
         filter = np.random.uniform(-1, 1, self.filter_size)
diff --git a/python/paddle_fl/mpc/tests/unittests/test_op_metric.py b/python/paddle_fl/mpc/tests/unittests/test_op_metric.py
index 9260957e69e79d0cd5d770206511292dd81d78a1..873ad699813bd4ffa6370cdbf4efc2052bd415d6 100644
--- a/python/paddle_fl/mpc/tests/unittests/test_op_metric.py
+++ b/python/paddle_fl/mpc/tests/unittests/test_op_metric.py
@@ -20,6 +20,7 @@ import unittest
 import numpy as np
 import paddle.fluid as fluid
 import paddle_fl.mpc as pfl_mpc
+import mpc_data_utils as mdu
 
 import test_op_base
 
@@ -92,7 +93,7 @@ class TestOpPrecisionRecall(test_op_base.TestOpBase):
         self.threshold = np.random.random()
         preds, labels = [], []
         self.exp_res = (0, [0] * 3)
-        share = lambda x: np.array([x * 65536/3] * 2).astype('int64').reshape(
+        share = lambda x: np.array([x * mdu.mpc_one_share] * 2).astype('int64').reshape(
                 [2] + self.input_size)
 
         for _ in range(n):
diff --git a/python/paddle_fl/mpc/tests/unittests/test_op_pool.py b/python/paddle_fl/mpc/tests/unittests/test_op_pool.py
index 685689782ede4393fac454baba33c8af5255cfe3..c519dc8721007dc9df0b3485959103822b9d78f8 100644
--- a/python/paddle_fl/mpc/tests/unittests/test_op_pool.py
+++ b/python/paddle_fl/mpc/tests/unittests/test_op_pool.py
@@ -54,15 +54,15 @@ class TestOpPool2d(test_op_base.TestOpBase):
     def test_pool2d(self):
 
         data_1 = np.array(
-            [[[[1, 2, 3, 4, 0, 100], 
-               [5, 6, 7, 8, 0, 100], 
+            [[[[1, 2, 3, 4, 0, 100],
+               [5, 6, 7, 8, 0, 100],
                [9, 10, 11, 12, 0, 200],
                [13, 14, 15, 16, 0, 200]]]]).astype('float32')
-        
+
         expected_out = np.array(
-            [[[[6, 8, 100], 
+            [[[[6, 8, 100],
                [14, 16, 200]]]]).astype('float32')
-        print("input data_1: {} \n".format(data_1))
+        # print("input data_1: {} \n".format(data_1))
 
         data_1_shares = aby3.make_shares(data_1)