diff --git a/python/paddle_fl/mpc/examples/mnist_demo/decrypt_save.py b/python/paddle_fl/mpc/examples/mnist_demo/decrypt_save.py
new file mode 100644
index 0000000000000000000000000000000000000000..c4ae109b30df9800281d0e4062ce8348e709d731
--- /dev/null
+++ b/python/paddle_fl/mpc/examples/mnist_demo/decrypt_save.py
@@ -0,0 +1,23 @@
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+Decrypt Prediction Data.
+"""
+import sys
+
+import process_data
+
+decrypt_file=sys.argv[1]
+BATCH_SIZE=128
+process_data.decrypt_data_to_file("/tmp/mnist_output_prediction", (BATCH_SIZE,), decrypt_file)