diff --git a/test/legacy_test/test_multiprocess_dataloader_dataset.py b/test/legacy_test/test_multiprocess_dataloader_dataset.py
index bbf13e8f57d82..e23e73eb99bca 100755
--- a/test/legacy_test/test_multiprocess_dataloader_dataset.py
+++ b/test/legacy_test/test_multiprocess_dataloader_dataset.py
@@ -59,8 +59,7 @@ def __iter__(self):
 
 class TestTensorDataset(unittest.TestCase):
     def run_main(self, num_workers, places):
-        paddle.static.default_startup_program().random_seed = 1
-        paddle.static.default_main_program().random_seed = 1
+        paddle.seed(1)
         place = paddle.CPUPlace()
         with base.dygraph.guard(place):
             input_np = np.random.random([16, 3, 4]).astype('float32')
@@ -98,8 +97,7 @@ def test_main(self):
 
 class TestComposeDataset(unittest.TestCase):
     def test_main(self):
-        paddle.static.default_startup_program().random_seed = 1
-        paddle.static.default_main_program().random_seed = 1
+        paddle.seed(1)
 
         dataset1 = RandomDataset(10)
         dataset2 = RandomDataset(10)
@@ -118,8 +116,7 @@ def test_main(self):
 
 class TestRandomSplitApi(unittest.TestCase):
     def test_main(self):
-        paddle.static.default_startup_program().random_seed = 1
-        paddle.static.default_main_program().random_seed = 1
+        paddle.seed(1)
 
         dataset1, dataset2 = paddle.io.random_split(range(5), [1, 4])
 
@@ -139,8 +136,7 @@ def test_main(self):
 
 class TestRandomSplitError(unittest.TestCase):
     def test_errors(self):
-        paddle.static.default_startup_program().random_seed = 1
-        paddle.static.default_main_program().random_seed = 1
+        paddle.seed(1)
 
         self.assertRaises(ValueError, paddle.io.random_split, range(5), [3, 8])
         self.assertRaises(ValueError, paddle.io.random_split, range(5), [8])
@@ -149,8 +145,7 @@ def test_errors(self):
 
 class TestSubsetDataset(unittest.TestCase):
     def run_main(self, num_workers, places):
-        paddle.static.default_startup_program().random_seed = 1
-        paddle.static.default_main_program().random_seed = 1
+        paddle.seed(1)
 
         input_np = np.random.random([5, 3, 4]).astype('float32')
         input = paddle.to_tensor(input_np)
@@ -201,8 +196,7 @@ def assert_basic(input, label):
         self.assertEqual(odd_list, elements_list)
 
     def test_main(self):
-        paddle.static.default_startup_program().random_seed = 1
-        paddle.static.default_main_program().random_seed = 1
+        paddle.seed(1)
 
         places = [paddle.CPUPlace()]
         if paddle.is_compiled_with_cuda():
@@ -213,8 +207,7 @@ def test_main(self):
 
 class TestChainDataset(unittest.TestCase):
     def run_main(self, num_workers, places):
-        paddle.static.default_startup_program().random_seed = 1
-        paddle.static.default_main_program().random_seed = 1
+        paddle.seed(1)
 
         dataset1 = RandomIterableDataset(10)
         dataset2 = RandomIterableDataset(10)
@@ -259,8 +252,7 @@ def __getitem__(self, idx):
 
 class TestNumpyMixTensorDataset(TestTensorDataset):
     def run_main(self, num_workers, places):
-        paddle.static.default_startup_program().random_seed = 1
-        paddle.static.default_main_program().random_seed = 1
+        paddle.seed(1)
         place = paddle.CPUPlace()
         with base.dygraph.guard(place):
             dataset = NumpyMixTensorDataset(16)
@@ -304,8 +296,7 @@ def __getitem__(self, idx):
 
 class TestComplextDataset(unittest.TestCase):
     def run_main(self, num_workers):
-        paddle.static.default_startup_program().random_seed = 1
-        paddle.static.default_main_program().random_seed = 1
+        paddle.seed(1)
         place = paddle.CPUPlace()
         with base.dygraph.guard(place):
             dataset = ComplextDataset(16)
@@ -360,8 +351,7 @@ def init_dataset(self):
         self.dataset = SingleFieldDataset(self.sample_num)
 
     def run_main(self, num_workers):
-        paddle.static.default_startup_program().random_seed = 1
-        paddle.static.default_main_program().random_seed = 1
+        paddle.seed(1)
         place = paddle.CPUPlace()
         with base.dygraph.guard(place):
             self.init_dataset()
diff --git a/test/legacy_test/test_multiprocess_dataloader_dynamic.py b/test/legacy_test/test_multiprocess_dataloader_dynamic.py
index 4620a5d32d111..8fed0972326ee 100644
--- a/test/legacy_test/test_multiprocess_dataloader_dynamic.py
+++ b/test/legacy_test/test_multiprocess_dataloader_dynamic.py
@@ -95,8 +95,7 @@ def run_main(
         collate_fn,
         use_shared_memory,
     ):
-        base.default_startup_program().random_seed = 1
-        base.default_main_program().random_seed = 1
+        paddle.seed(1)
         with base.dygraph.guard(places[0]):
             fc_net = SimpleFCNet()
             optimizer = paddle.optimizer.Adam(parameters=fc_net.parameters())
@@ -176,8 +175,7 @@ def run_main(
         collate_fn,
         use_shared_memory,
     ):
-        base.default_startup_program().random_seed = 1
-        base.default_main_program().random_seed = 1
+        paddle.seed(1)
         with base.dygraph.guard(places[0]):
             fc_net = SimpleFCNet()
             optimizer = paddle.optimizer.Adam(parameters=fc_net.parameters())
diff --git a/test/legacy_test/test_multiprocess_dataloader_iterable_dataset_dynamic.py b/test/legacy_test/test_multiprocess_dataloader_iterable_dataset_dynamic.py
index 164a6531d3ecc..58b07c981d75e 100644
--- a/test/legacy_test/test_multiprocess_dataloader_iterable_dataset_dynamic.py
+++ b/test/legacy_test/test_multiprocess_dataloader_iterable_dataset_dynamic.py
@@ -77,8 +77,7 @@ def forward(self, image):
 
 class TestDygraphDataLoader(unittest.TestCase):
     def run_main(self, num_workers, places, persistent_workers):
-        base.default_startup_program().random_seed = 1
-        base.default_main_program().random_seed = 1
+        paddle.seed(1)
         with base.dygraph.guard(places[0]):
             fc_net = SimpleFCNet()
             optimizer = paddle.optimizer.Adam(parameters=fc_net.parameters())
@@ -146,8 +145,7 @@ def test_main(self):
 
 class TestDygraphDataLoaderWithBatchedDataset(TestDygraphDataLoader):
     def run_main(self, num_workers, places, persistent_workers):
-        base.default_startup_program().random_seed = 1
-        base.default_main_program().random_seed = 1
+        paddle.seed(1)
         with base.dygraph.guard(places[0]):
             fc_net = SimpleFCNet()
             optimizer = paddle.optimizer.Adam(parameters=fc_net.parameters())
diff --git a/test/legacy_test/test_multiprocess_dataloader_iterable_dataset_static.py b/test/legacy_test/test_multiprocess_dataloader_iterable_dataset_static.py
index 845f4b0e80582..78b8cd803fdc9 100644
--- a/test/legacy_test/test_multiprocess_dataloader_iterable_dataset_static.py
+++ b/test/legacy_test/test_multiprocess_dataloader_iterable_dataset_static.py
@@ -47,8 +47,7 @@ def __iter__(self):
 def simple_fc_net_static():
     startup_prog = base.Program()
     main_prog = base.Program()
-    startup_prog.random_seed = 1
-    main_prog.random_seed = 1
+    paddle.seed(1)
 
     with base.unique_name.guard():
         with base.program_guard(main_prog, startup_prog):
diff --git a/test/legacy_test/test_multiprocess_dataloader_static.py b/test/legacy_test/test_multiprocess_dataloader_static.py
index 2d465fd818df0..b01a2fa6605f2 100644
--- a/test/legacy_test/test_multiprocess_dataloader_static.py
+++ b/test/legacy_test/test_multiprocess_dataloader_static.py
@@ -47,8 +47,7 @@ def __len__(self):
 def simple_fc_net_static():
     startup_prog = base.Program()
     main_prog = base.Program()
-    startup_prog.random_seed = 1
-    main_prog.random_seed = 1
+    paddle.seed(1)
 
     with base.unique_name.guard():
         with base.program_guard(main_prog, startup_prog):