diff --git a/python/paddle/fluid/tests/unittests/test_exponential_op.py b/python/paddle/fluid/tests/unittests/test_exponential_op.py
index c5833a05c23161bf57f6bd6da45f594aacf03c84..7d43ebadf41bbd0193fc596359c2914149bc758d 100644
--- a/python/paddle/fluid/tests/unittests/test_exponential_op.py
+++ b/python/paddle/fluid/tests/unittests/test_exponential_op.py
@@ -18,6 +18,7 @@ import numpy as np
 from op_test import OpTest
 
 paddle.enable_static()
+paddle.seed(100)
 
 
 class TestExponentialOp1(OpTest):
diff --git a/python/paddle/fluid/tests/unittests/test_poisson_op.py b/python/paddle/fluid/tests/unittests/test_poisson_op.py
index 854aaf88547ab13af29ffbcadb50a4e8c9fbd6fc..dc4dc3284e923eac17be2309c1509760dc95d03f 100644
--- a/python/paddle/fluid/tests/unittests/test_poisson_op.py
+++ b/python/paddle/fluid/tests/unittests/test_poisson_op.py
@@ -19,6 +19,7 @@ from op_test import OpTest
 import math
 
 paddle.enable_static()
+paddle.seed(100)
 
 
 def output_hist(out, lam, a, b):