diff --git a/paddle/scripts/paddle_build.sh b/paddle/scripts/paddle_build.sh
index 13e69a51b9b70b42b0aa81fa2da5edaf5358635c..039b827c04915c9d41d731e02a764c9bc97a231a 100755
--- a/paddle/scripts/paddle_build.sh
+++ b/paddle/scripts/paddle_build.sh
@@ -471,116 +471,9 @@ function assert_api_not_changed() {
 }
 
 function assert_api_spec_approvals() {
-    if [ -z ${BRANCH} ]; then
-        BRANCH="develop"
-    fi
-
-    API_FILES=("CMakeLists.txt"
-               "paddle/fluid/API.spec"
-               "paddle/fluid/op_use_default_grad_op_maker.spec"
-               "paddle/fluid/framework/operator.h"
-               "paddle/fluid/framework/tensor.h"
-               "paddle/fluid/framework/details/op_registry.h"
-               "paddle/fluid/framework/grad_op_desc_maker.h"
-               "paddle/fluid/framework/lod_tensor.h"
-               "paddle/fluid/framework/selected_rows.h"
-               "paddle/fluid/framework/op_desc.h"
-               "paddle/fluid/framework/block_desc.h"
-               "paddle/fluid/framework/var_desc.h"
-               "paddle/fluid/framework/scope.h"
-               "paddle/fluid/framework/ir/node.h"
-               "paddle/fluid/framework/ir/graph.h"
-               "paddle/fluid/framework/framework.proto"
-               "python/requirements.txt"
-               "python/paddle/fluid/__init__.py"
-               "python/paddle/fluid/compiler.py"
-               "python/paddle/fluid/parallel_executor.py"
-               "python/paddle/fluid/framework.py"
-               "python/paddle/fluid/backward.py"
-               "paddle/fluid/operators/distributed/send_recv.proto.in")
-
-    approval_line=`curl -H "Authorization: token ${GITHUB_API_TOKEN}" https://api.github.com/repos/PaddlePaddle/Paddle/pulls/${GIT_PR_ID}/reviews?per_page=10000`
-    git_files=`git diff --numstat upstream/$BRANCH| wc -l`
-    git_count=`git diff --numstat upstream/$BRANCH| awk '{sum+=$1}END{print sum}'`
-    
-    if [[ "$git_files" > 19 || "$git_count" > 999 ]];then
-      APPROVALS=`echo ${approval_line}|python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 5086632`
-      if [ "${APPROVALS}" == "FALSE" ]; then
-        echo "You must have Dianhai approval for change 20+ files or add than 1000+ lines of content"
-      fi
-    fi    
-
-    for API_FILE in ${API_FILES[*]}; do
-      API_CHANGE=`git diff --name-only upstream/$BRANCH | grep "${API_FILE}" | grep -v "/CMakeLists.txt" || true`
-      echo "checking ${API_FILE} change, PR: ${GIT_PR_ID}, changes: ${API_CHANGE}"
-      if [ "${API_CHANGE}" ] && [ "${GIT_PR_ID}" != "" ]; then
-          # NOTE: per_page=10000 should be ok for all cases, a PR review > 10000 is not human readable.
-          # approval_user_list: XiaoguangHu01 46782768,chengduoZH 30176695,Xreki 12538138,luotao1 6836917,sneaxiy 32832641,tensor-tang 21351065,xsrobin 50069408,qingqing01 7845005,guoshengCS 14105589,heavengate 12605721,kuke 3064195,Superjomn 328693,lanxianghit 47554610,cyj1986 39645414,hutuxian 11195205,frankwhzhang 20274488,nepeplwu 45024560,Dianhai 5086632,JiabinYang 22361972,chenwhql 22561442. 
-          if [ "${API_FILE}" == "paddle/fluid/API.spec" ];then
-            APPROVALS=`echo ${approval_line}|python ${PADDLE_ROOT}/tools/check_pr_approval.py 2 7534971 14105589 12605721 3064195 328693 47554610 39645414 11195205 20274488 45024560 ` 
-          elif [ "${API_FILE}" == "paddle/fluid/op_use_default_grad_op_maker.spec" ];then
-            APPROVALS=`echo ${approval_line}|python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 32832641 6836917`
-          elif [ "${API_FILE}" == "CMakeLists.txt" ];then
-            APPROVALS=`echo ${approval_line}|python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 6836917 46782768 30176695`
-          elif [ "${API_FILE}" == "python/paddle/fluid/__init__.py" ];then
-             APPROVALS=`echo ${approval_line}|python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 6836917 47554610`
-          elif [ "${API_FILE}" == "python/requirements.txt" ];then
-             APPROVALS=`echo ${approval_line}|python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 6836917 22361972`
-          else
-            APPROVALS=`echo ${approval_line}|python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 21351065 3048612 46782768 30176695 12538138 6836917 32832641`
-          fi
-          echo "current pr ${GIT_PR_ID} got approvals: ${APPROVALS}"
-          if [ "${APPROVALS}" == "FALSE" ]; then
-            if [ "${API_FILE}" == "paddle/fluid/API.spec" ];then
-              echo "You must have two RD (wanghaoshuang or guoshengCS or heavengate or kuke or Superjomn or lanxianghit or cyj1986 or hutuxian or frankwhzhang or nepeplwu) approval for the api change! ${API_FILE} for the management reason of API interface and API document."
-            elif [ "${API_FILE}" == "paddle/fluid/op_use_default_grad_op_maker.spec" ];then
-              echo "You must have one RD (sneaxiy (Recommend) or luotao1) approval for the api change! ${API_FILE} for the management of grad_op memory optimization."
-            elif [ "${API_FILE}" == "CMakeLists.txt" ];then
-              echo "You must have one RD (luotao1 or chengduoZH or XiaoguangHu01) approval for the cmakelist change! ${API_FILE} for the management reason of the Compilation parameter."
-            elif [ "${API_FILE}" == "python/requirements.txt" ];then
-              echo "You must have one RD (JiabinYang (Recommend) or luotao1) approval for the python/requirements.txt change! ${API_FILE} for the management reason of the Compilation parameter."
-            elif [ "${API_FILE}" == "python/paddle/fluid/__init__.py" ];then
-              echo "You must have one RD (lanxianghit (Recommend) or luotao1) approval for the python/paddle/fluid/__init__.py change! ${API_FILE} for the management reason of the environment variables."
-            else
-              echo "You must have one RD (XiaoguangHu01,chengduoZH,Xreki,luotao1,sneaxiy,tensor-tang) approval for the api change! ${API_FILE} for the management reason of the underlying code for fluid."
-            fi
-            exit 1
-          fi
-      fi
-    done
-
-    HAS_CONST_CAST=`git diff -U0 upstream/$BRANCH |grep -o -m 1 "const_cast" || true`
-    if [ ${HAS_CONST_CAST} ] && [ "${GIT_PR_ID}" != "" ]; then
-        APPROVALS=`curl -H "Authorization: token ${GITHUB_API_TOKEN}" https://api.github.com/repos/PaddlePaddle/Paddle/pulls/${GIT_PR_ID}/reviews?per_page=10000 | \
-        python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 21351065 3048612 46782768 30176695 12538138 6836917 32832641`
-        echo "current pr ${GIT_PR_ID} got approvals: ${APPROVALS}"
-        if [ "${APPROVALS}" == "FALSE" ]; then
-            echo "You must have one RD (XiaoguangHu01,chengduoZH,Xreki,luotao1,sneaxiy,tensor-tang) approval for the usage (either add or delete) of const_cast."
-            exit 1
-        fi
-    fi
-    
-    HAS_DEFINE_FLAG=`git diff -U0 upstream/$BRANCH |grep -o -m 1 "DEFINE_int32" |grep -o -m 1 "DEFINE_bool" | grep -o -m 1 "DEFINE_string" || true`
-    if [ ${HAS_DEFINE_FLAG} ] && [ "${GIT_PR_ID}" != "" ]; then
-        APPROVALS=`curl -H "Authorization: token ${GITHUB_API_TOKEN}" https://api.github.com/repos/PaddlePaddle/Paddle/pulls/${GIT_PR_ID}/reviews?per_page=10000 | \
-        python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 47554610` 
-        echo "current pr ${GIT_PR_ID} got approvals: ${APPROVALS}"
-        if [ "${APPROVALS}" == "FALSE" ]; then
-            echo "You must have one RD lanxianghit approval for the usage (either add or delete) of DEFINE_int32/DEFINE_bool/DEFINE_string flag."
-            exit 1
-        fi
-    fi
-
-    HAS_PADDLE_ENFORCE_FLAG=`git diff -U0 upstream/$BRANCH |grep -v "PADDLE_ENFORCE_" |grep -o -m 1 "PADDLE_ENFORCE" || true`
-    if [ ${HAS_PADDLE_ENFORCE_FLAG} ] && [ "${GIT_PR_ID}" != "" ]; then
-        APPROVALS=`curl -H "Authorization: token ${GITHUB_API_TOKEN}" https://api.github.com/repos/PaddlePaddle/Paddle/pulls/${GIT_PR_ID}/reviews?per_page=10000 | \
-        python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 6836917 47554610 22561442`
-        echo "current pr ${GIT_PR_ID} got approvals: ${APPROVALS}"
-        if [ "${APPROVALS}" == "FALSE" ]; then
-            echo "PADDLE_ENFORCE will be deprecated soon. Please use PADDLE_ENFORCE_EQ/NE/GT/GE/LT/LE or PADDLE_ENFORCE_NOT_NULL instead."
-            echo "You must have one RD (chenwhql (Recommend) , luotao1 (Recommend) or lanxianghit) approval for the usage (either add or delete) of PADDLE_ENFORCE. "
-            exit 1
-        fi
+    /bin/bash ${PADDLE_ROOT}/tools/check_api_approvals.sh
+    if [ "$?" != 0 ];then
+       exit 1
     fi
 }
 
diff --git a/tools/check_api_approvals.sh b/tools/check_api_approvals.sh
new file mode 100644
index 0000000000000000000000000000000000000000..058158cbc319067bfd57132c7062969a9f681245
--- /dev/null
+++ b/tools/check_api_approvals.sh
@@ -0,0 +1,137 @@
+#!/bin/bash
+if [ -z ${BRANCH} ]; then
+    BRANCH="develop"
+fi
+
+PADDLE_ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}")/../" && pwd )"
+API_FILES=("CMakeLists.txt"
+           "paddle/fluid/API.spec"
+           "paddle/fluid/op_use_default_grad_op_maker.spec"
+           "paddle/fluid/framework/operator.h"
+           "paddle/fluid/framework/tensor.h"
+           "paddle/fluid/framework/details/op_registry.h"
+           "paddle/fluid/framework/grad_op_desc_maker.h"
+           "paddle/fluid/framework/lod_tensor.h"
+           "paddle/fluid/framework/selected_rows.h"
+           "paddle/fluid/framework/op_desc.h"
+           "paddle/fluid/framework/block_desc.h"
+           "paddle/fluid/framework/var_desc.h"
+           "paddle/fluid/framework/scope.h"
+           "paddle/fluid/framework/ir/node.h"
+           "paddle/fluid/framework/ir/graph.h"
+           "paddle/fluid/framework/framework.proto"
+           "python/requirements.txt"
+           "python/paddle/fluid/__init__.py"
+           "python/paddle/fluid/compiler.py"
+           "python/paddle/fluid/parallel_executor.py"
+           "python/paddle/fluid/framework.py"
+           "python/paddle/fluid/backward.py"
+           "paddle/fluid/operators/distributed/send_recv.proto.in")
+
+approval_line=`curl -H "Authorization: token ${GITHUB_API_TOKEN}" https://api.github.com/repos/PaddlePaddle/Paddle/pulls/${GIT_PR_ID}/reviews?per_page=10000`
+git_files=`git diff --numstat upstream/$BRANCH| wc -l`
+git_count=`git diff --numstat upstream/$BRANCH| awk '{sum+=$1}END{print sum}'`
+failed_num=0
+echo_list=()
+if [[ $git_files -gt 19 || $git_count -gt 999 ]];then
+  APPROVALS=`echo ${approval_line}|python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 5086632`
+  if [ "${APPROVALS}" == "FALSE" ]; then
+    failed_num=`expr $failed_num + 1`
+    echo_line="You must have Dianhai approval for change 20+ files or add than 1000+ lines of content\n"
+    echo_list=(${echo_list[@]}$failed_num "." $echo_line)
+  fi
+fi    
+
+for API_FILE in ${API_FILES[*]}; do
+  API_CHANGE=`git diff --name-only upstream/$BRANCH | grep "${API_FILE}" | grep -v "/CMakeLists.txt" || true`
+  echo "checking ${API_FILE} change, PR: ${GIT_PR_ID}, changes: ${API_CHANGE}"
+  if [ "${API_CHANGE}" ] && [ "${GIT_PR_ID}" != "" ]; then
+      # NOTE: per_page=10000 should be ok for all cases, a PR review > 10000 is not human readable.
+      # approval_user_list: XiaoguangHu01 46782768,chengduoZH 30176695,Xreki 12538138,luotao1 6836917,sneaxiy 32832641,tensor-tang 21351065,xsrobin 50069408,qingqing01 7845005,guoshengCS 14105589,heavengate 12605721,kuke 3064195,Superjomn 328693,lanxianghit 47554610,cyj1986 39645414,hutuxian 11195205,frankwhzhang 20274488,nepeplwu 45024560,Dianhai 5086632,JiabinYang 22361972,chenwhql 22561442. 
+      if [ "${API_FILE}" == "paddle/fluid/API.spec" ];then
+        APPROVALS=`echo ${approval_line}|python ${PADDLE_ROOT}/tools/check_pr_approval.py 2 7534971 14105589 12605721 3064195 328693 47554610 39645414 11195205 20274488 45024560 ` 
+      elif [ "${API_FILE}" == "paddle/fluid/op_use_default_grad_op_maker.spec" ];then
+        APPROVALS=`echo ${approval_line}|python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 32832641 6836917`
+      elif [ "${API_FILE}" == "CMakeLists.txt" ];then
+        APPROVALS=`echo ${approval_line}|python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 6836917 46782768 30176695`
+      elif [ "${API_FILE}" == "python/paddle/fluid/__init__.py" ];then
+         APPROVALS=`echo ${approval_line}|python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 6836917 47554610`
+      elif [ "${API_FILE}" == "python/requirements.txt" ];then
+         APPROVALS=`echo ${approval_line}|python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 6836917 22361972`
+      else
+        APPROVALS=`echo ${approval_line}|python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 21351065 3048612 46782768 30176695 12538138 6836917 32832641`
+      fi
+      echo "current pr ${GIT_PR_ID} got approvals: ${APPROVALS}"
+      if [ "${APPROVALS}" == "FALSE" ]; then
+        if [ "${API_FILE}" == "paddle/fluid/API.spec" ];then
+          failed_num=`expr $failed_num + 1`
+          echo_line="You must have two RD (wanghaoshuang or guoshengCS or heavengate or kuke or Superjomn or lanxianghit or cyj1986 or hutuxian or frankwhzhang or nepeplwu) approval for the api change! ${API_FILE} for the management reason of API interface and API document.\n"
+          echo_list=(${echo_list[@]}$failed_num "." $echo_line)
+        elif [ "${API_FILE}" == "paddle/fluid/op_use_default_grad_op_maker.spec" ];then
+          failed_num=`expr $failed_num + 1` 
+          echo_line="You must have one RD (sneaxiy (Recommend) or luotao1) approval for op_use_default_grad_op_maker.spec, which manages the grad_op memory optimization.\n"
+          echo_list=(${echo_list[@]}$failed_num "." $echo_line)
+        elif [ "${API_FILE}" == "CMakeLists.txt" ];then
+          failed_num=`expr $failed_num + 1`
+          echo_line="You must have one RD (luotao1 or chengduoZH or XiaoguangHu01) approval for CMakeLists.txt, which manages the compilation parameter.\n"
+          echo_list=(${echo_list[@]}$failed_num "." $echo_line)
+        elif [ "${API_FILE}" == "python/requirements.txt" ];then
+          failed_num=`expr $failed_num + 1`
+          echo_line="You must have one RD (JiabinYang (Recommend) or luotao1) approval for python/requirements.txt, which manages the third-party python package.\n"
+          echo_list=(${echo_list[@]}$failed_num "." $echo_line)
+        elif [ "${API_FILE}" == "python/paddle/fluid/__init__.py" ];then
+          failed_num=`expr $failed_num + 1`
+          echo_line="You must have one RD (lanxianghit (Recommend) or luotao1) approval for the python/paddle/fluid/init.py, which manages the environment variables.\n"
+          echo_list=(${echo_list[@]}$failed_num "." $echo_line)
+        else
+          failed_num=`expr $failed_num + 1`
+          echo_line="You must have one RD (XiaoguangHu01,chengduoZH,Xreki,luotao1,sneaxiy,tensor-tang) approval for ${API_FILE}, which manages the underlying code for fluid.\n"
+          echo_list=(${echo_list[@]}$failed_num "." $echo_line)
+        fi
+      fi
+  fi
+done
+
+HAS_CONST_CAST=`git diff -U0 upstream/$BRANCH |grep -o -m 1 "const_cast" || true`
+if [ ${HAS_CONST_CAST} ] && [ "${GIT_PR_ID}" != "" ]; then
+    APPROVALS=`curl -H "Authorization: token ${GITHUB_API_TOKEN}" https://api.github.com/repos/PaddlePaddle/Paddle/pulls/${GIT_PR_ID}/reviews?per_page=10000 | \
+    python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 21351065 3048612 46782768 30176695 12538138 6836917 32832641`
+    echo "current pr ${GIT_PR_ID} got approvals: ${APPROVALS}"
+    if [ "${APPROVALS}" == "FALSE" ]; then
+        failed_num=`expr $failed_num + 1`
+        echo_line="You must have one RD (XiaoguangHu01,chengduoZH,Xreki,luotao1,sneaxiy,tensor-tang) approval for the usage (either add or delete) of const_cast.\n"
+        echo_list=(${echo_list[@]}$failed_num "." $echo_line)
+    fi
+fi
+
+HAS_DEFINE_FLAG=`git diff -U0 upstream/$BRANCH |grep -o -m 1 "DEFINE_int32" |grep -o -m 1 "DEFINE_bool" | grep -o -m 1 "DEFINE_string" || true`
+if [ ${HAS_DEFINE_FLAG} ] && [ "${GIT_PR_ID}" != "" ]; then
+    APPROVALS=`curl -H "Authorization: token ${GITHUB_API_TOKEN}" https://api.github.com/repos/PaddlePaddle/Paddle/pulls/${GIT_PR_ID}/reviews?per_page=10000 | \
+    python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 47554610` 
+    echo "current pr ${GIT_PR_ID} got approvals: ${APPROVALS}"
+    if [ "${APPROVALS}" == "FALSE" ]; then
+        failed_num=`expr $failed_num + 1`
+        echo_line="You must have one RD lanxianghit approval for the usage (either add or delete) of DEFINE_int32/DEFINE_bool/DEFINE_string flag.\n"
+        echo_list=(${echo_list[@]}$failed_num "." $echo_line)
+    fi
+fi
+
+HAS_PADDLE_ENFORCE_FLAG=`git diff -U0 upstream/$BRANCH |grep -v "PADDLE_ENFORCE_" |grep -o -m 1 "PADDLE_ENFORCE" || true`
+if [ ${HAS_PADDLE_ENFORCE_FLAG} ] && [ "${GIT_PR_ID}" != "" ]; then
+    APPROVALS=`curl -H "Authorization: token ${GITHUB_API_TOKEN}" https://api.github.com/repos/PaddlePaddle/Paddle/pulls/${GIT_PR_ID}/reviews?per_page=10000 | \
+    python ${PADDLE_ROOT}/tools/check_pr_approval.py 1 6836917 47554610 22561442`
+    echo "current pr ${GIT_PR_ID} got approvals: ${APPROVALS}"
+    if [ "${APPROVALS}" == "FALSE" ]; then
+        failed_num=`expr $failed_num + 1`
+        echo_line="PADDLE_ENFORCE is not recommended. Please use PADDLE_ENFORCE_EQ/NE/GT/GE/LT/LE or PADDLE_ENFORCE_NOT_NULL or PADDLE_ENFORCE_CUDA_SUCCESS instead.\nYou must have one RD (chenwhql (Recommend) , luotao1 (Recommend) or lanxianghit) approval for the usage (either add or delete) of PADDLE_ENFORCE.\n"
+        echo_list=(${echo_list[@]}$failed_num "." $echo_line)
+    fi
+fi
+
+if [ -n "${echo_list}" ];then
+  echo "****************"
+  echo -e ${echo_list[@]}
+  echo "There are ${failed_num} approved errors."
+  echo "****************"
+  exit 1
+fi