diff --git a/paddle/scripts/paddle_build.sh b/paddle/scripts/paddle_build.sh
index 8b0bed07f681b32fa0ef4ebb398814a94bb5acae..ea49bbd5810ad50c14f515b740fb5e09fccdd8d3 100755
--- a/paddle/scripts/paddle_build.sh
+++ b/paddle/scripts/paddle_build.sh
@@ -2539,6 +2539,7 @@ set -x
         bash $PADDLE_ROOT/tools/check_added_ut.sh
         #check change of pr_unnitests and dev_unnitests
         check_approvals_of_unittest 2
+        ctest -N | awk -F ': ' '{print $2}' | sed '/^$/d' | sed '$d' > ${PADDLE_ROOT}/build/all_ut_list
         if [ ${PRECISION_TEST:-OFF} == "ON" ]; then
             python3.7 $PADDLE_ROOT/tools/get_pr_ut.py
         fi
@@ -2571,7 +2572,6 @@ set +x
         mkdir -p ${PADDLE_ROOT}/build/Testing/Temporary/
         cp -r ${PADDLE_ROOT}/build/CTestCostData.txt ${PADDLE_ROOT}/build/Testing/Temporary/
 
-        ctest -N | awk -F ': ' '{print $2}' | sed '/^$/d' | sed '$d' > all_ut_list
         get_quickly_disable_ut||disable_ut_quickly='disable_ut'    # indicate whether the case was in quickly disable list
         test_cases=$(ctest -N -V) # get all test cases
 
diff --git a/tools/get_pr_ut.py b/tools/get_pr_ut.py
index 3fee302aa4f1938656a2a58f0f0e8ea0667ea790..d3a1c41682bd9b2a54fdd36682f9e50765e07c5b 100644
--- a/tools/get_pr_ut.py
+++ b/tools/get_pr_ut.py
@@ -280,11 +280,12 @@ class PRChecker(object):
 
     def file_is_unnit_test(self, unittest_path):
         # get all testcases by ctest-N
-        all_ut_file = '%s/build/all_ut_file' % PADDLE_ROOT
-        os.system(
-            "cd %s/build && ctest -N | awk -F ': ' '{print $2}' | sed '/^$/d' | sed '$d' > %s"
-            % (PADDLE_ROOT, all_ut_file)
-        )
+        all_ut_file = PADDLE_ROOT + 'build/all_ut_list'
+        # all_ut_file = '%s/build/all_ut_file' % PADDLE_ROOT
+        print("PADDLE_ROOT:", PADDLE_ROOT)
+        print("all_ut_file path:", all_ut_file)
+        build_path = PADDLE_ROOT + 'build/'
+        print("build_path:", build_path)
         (unittest_directory, unittest_name) = os.path.split(unittest_path)
         # determine whether filename is in all_ut_case
         with open(all_ut_file, 'r') as f:
@@ -293,8 +294,7 @@ class PRChecker(object):
                 test = test.replace('\n', '').strip()
                 if test == unittest_name.split(".")[0]:
                     return True
-            else:
-                return False
+        return False
 
     def get_pr_ut(self):
         """Get unit tests in pull request."""
@@ -410,17 +410,17 @@ class PRChecker(object):
                         # determine whether the new added file is a member of added_ut
                         if file_dict[f] in ['added']:
                             f_judge_in_added_ut = False
-                            with open(
-                                '{}/added_ut'.format(PADDLE_ROOT)
-                            ) as utfile:
-                                (filepath, tempfilename) = os.path.split(
-                                    f_judge
-                                )
-                                for f_file in utfile:
-                                    if (
-                                        f_file.strip('\n')
-                                        == tempfilename.split(".")[0]
-                                    ):
+                            path = PADDLE_ROOT + 'added_ut'
+                            print("PADDLE_ROOT:", PADDLE_ROOT)
+                            print("adde_ut path:", path)
+                            (unittest_directory, unittest_name) = os.path.split(
+                                f_judge
+                            )
+                            with open(path, 'r') as f:
+                                added_unittests = f.readlines()
+                                for test in added_unittests:
+                                    test = test.replace('\n', '').strip()
+                                    if test == unittest_name.split(".")[0]:
                                         f_judge_in_added_ut = True
                             if f_judge_in_added_ut:
                                 print(
diff --git a/tools/windows/run_unittests.sh b/tools/windows/run_unittests.sh
index ac70fc0b7540789be9aa2ef1d9b29f3f7932f0ce..6f2e84f427a41af7c1eb494bc108ba57e78f850a 100644
--- a/tools/windows/run_unittests.sh
+++ b/tools/windows/run_unittests.sh
@@ -280,7 +280,7 @@ rm -rf $PADDLE_ROOT/tools/check_added_ut_win.sh
 if [ -f "$PADDLE_ROOT/added_ut" ];then
     added_uts=^$(awk BEGIN{RS=EOF}'{gsub(/\n/,"$|^");print}' $PADDLE_ROOT/added_ut)$
     ctest -R "(${added_uts})" -E "${disable_win_inference_test}" --output-on-failure -C Release --repeat-until-fail 3;added_ut_error=$?
-    rm -f $PADDLE_ROOT/added_ut
+    #rm -f $PADDLE_ROOT/added_ut
     if [ "$added_ut_error" != 0 ];then
         echo "========================================"
         echo "Added UT should pass three additional executions"