diff --git a/python/examples/bert/test_multi_fetch_client.py b/python/examples/bert/test_multi_fetch_client.py
new file mode 100644
index 0000000000000000000000000000000000000000..3749e4d384498a858c6cc784c3bfc387d7fd791f
--- /dev/null
+++ b/python/examples/bert/test_multi_fetch_client.py
@@ -0,0 +1,44 @@
+# 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.
+
+from paddle_serving_client import Client
+from paddle_serving_app.reader import ChineseBertReader
+import sys
+
+client = Client()
+client.load_client_config(
+    "./bert_multi_fetch_client/serving_client_conf.prototxt")
+client.connect(["127.0.0.1:9292"])
+
+reader = ChineseBertReader({"max_seq_len": 32})
+fetch = ["sequence_10", "sequence_12", "pooled_output"]
+expected_shape = {
+    "sequence_10": (4, 32, 768),
+    "sequence_12": (4, 32, 768),
+    "pooled_output": (4, 768)
+}
+batch_size = 4
+feed_batch = []
+
+for line in sys.stdin:
+    feed = reader.process(line)
+    if len(feed_batch) < batch_size:
+        feed_batch.append(feed)
+    else:
+        fetch_map = client.predict(feed=feed_batch, fetch=fetch)
+        feed_batch = []
+        for var_name in fetch:
+            if fetch_map[var_name].shape != expected_shape[var_name]:
+                print("fetch var {} shape error.".format(var_name))
+                sys.exit(1)
diff --git a/python/examples/fit_a_line/test_multi_process_client.py b/python/examples/fit_a_line/test_multi_process_client.py
new file mode 100644
index 0000000000000000000000000000000000000000..46ba3b60b5ae09b568868531d32234ade50d8556
--- /dev/null
+++ b/python/examples/fit_a_line/test_multi_process_client.py
@@ -0,0 +1,36 @@
+# 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.
+
+from paddle_serving_client import Client
+from paddle_serving_client.utils import MultiThreadRunner
+import paddle
+
+
+def single_func(idx, resource):
+    client = Client()
+    client.load_client_config(
+        "./uci_housing_client/serving_client_conf.prototxt")
+    client.connect(["127.0.0.1:9293", "127.0.0.1:9292"])
+    test_reader = paddle.batch(
+        paddle.reader.shuffle(
+            paddle.dataset.uci_housing.test(), buf_size=500),
+        batch_size=1)
+    for data in test_reader():
+        fetch_map = client.predict(feed={"x": data[0][0]}, fetch=["price"])
+    return [[0]]
+
+
+multi_thread_runner = MultiThreadRunner()
+thread_num = 4
+result = multi_thread_runner.run(single_func, thread_num, {})
diff --git a/tools/serving_build.sh b/tools/serving_build.sh
index c5823672739e70c61be4f0f7526e8fe89a742c2a..ffcd41e25b81f9f011112837525420cfcb8f7b93 100644
--- a/tools/serving_build.sh
+++ b/tools/serving_build.sh
@@ -343,7 +343,7 @@ function python_test_bert_multi_fetch() {
             tar -xzvf bert_multi_fetch.tar.gz
             check_cmd "python -m paddle_serving_server.serve --model bert_multi_fetch_model --port 9292 &"
             sleep 5
-            check_cmd "head -n 8 data-c.txt | python bert_multi_fetch_client.py"
+            check_cmd "head -n 8 data-c.txt | python test_multi_fetch_client.py"
             kill_server_process
             echo "bert mutli fetch RPC inference pass"
             ;;
@@ -353,7 +353,7 @@ function python_test_bert_multi_fetch() {
             tar -xzvf bert_multi_fetch.tar.gz
             check_cmd "python -m paddle_serving_server_gpu.serve --model bert_multi_fetch_model --port 9292 --gpu_ids 0 &"
             sleep 5
-            check_cmd "head -n 8 data-c.txt | python bert_multi_fetch_client.py"
+            check_cmd "head -n 8 data-c.txt | python test_multi_fetch_client.py"
             kill_server_process
             echo "bert mutli fetch RPC inference pass"
             ;;
@@ -368,7 +368,35 @@ function python_test_bert_multi_fetch() {
 }
 
 function python_test_multi_process(){
-
+    # pwd: /Serving/python/examples
+    local TYPT=$1
+    export SERVING_BIN=${SERVING_WORKDIR}/build-server-${TYPE}/core/general-server/serving
+    cd bert # pwd: /Serving/python/examples/fit_a_line
+    case $TYPE in
+        CPU)
+            check_cmd "python -m paddle_serving_server.serve --model uci_housing_model --port 9292 &"
+            check_cmd "python -m paddle_serving_server.serve --model uci_housing_model --port 9293 &"
+            sleep 5
+            check_cmd "python test_multi_process_client.py"
+            kill_server_process
+            echo "bert mutli rpc RPC inference pass"
+            ;;
+        GPU)
+            check_cmd "python -m paddle_serving_server_gpu.serve --model uci_housing_model --port 9292 --gpu_ids 0 &"
+            check_cmd "python -m paddle_serving_server_gpu.serve --model uci_housing_model --port 9293 --gpu_ids 0 &"
+            sleep 5
+            check_cmd "python test_multi_process_client.py"
+            kill_server_process
+            echo "bert mutli process RPC inference pass"
+            ;;
+        *)
+            echo "error type"
+            exit 1
+            ;;
+    esac
+    echo "test multi process $TYPE finished as expected."
+    unset SERVING_BIN
+    cd ..
 }
 
 function python_test_imdb() {