diff --git a/cmake/coveralls.cmake b/cmake/coveralls.cmake
index c0e96e28775f910d02e8c9d913fc3906d93291e0..aad02d24be15535d65f4ac0d0db58fa3cd85c3bf 100644
--- a/cmake/coveralls.cmake
+++ b/cmake/coveralls.cmake
@@ -62,8 +62,10 @@ function(code_coverage _COVERAGE_SRCS _COVERALLS_UPLOAD _CMAKE_SCRIPT_PATH)
 endfunction()
 
 if(WITH_COVERAGE)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
+    if (NOT ("$ENV{PADDLE_GIT_DIFF_H_FILE}" STREQUAL ""))
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
+        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
+    endif()
 
     set(EXCLUDE_DIRS
         "demo/"
diff --git a/cmake/generic.cmake b/cmake/generic.cmake
index 5475386224963b85a0d81458ec46b7a8a49deb15..835ea5f61c2f1a12fb7b73b081a74707e17a61f7 100644
--- a/cmake/generic.cmake
+++ b/cmake/generic.cmake
@@ -266,6 +266,32 @@ function(merge_static_libs TARGET_NAME)
   endif(WIN32)
 endfunction(merge_static_libs)
 
+function(check_coverage_opt TARGET_NAME SRCS)
+  if(WITH_COVERAGE)
+    if ("$ENV{PADDLE_GIT_DIFF_H_FILE}" STREQUAL "")
+      if (NOT ("$ENV{PADDLE_GIT_DIFF_CC_FILE}" STREQUAL ""))
+        string(REPLACE "," ";" CC_FILE_LIST $ENV{PADDLE_GIT_DIFF_CC_FILE})
+        set(use_coverage_opt FALSE)
+        FOREACH(cc_file ${CC_FILE_LIST})
+          if("${SRCS};" MATCHES "${cc_file}")
+            set(use_coverage_opt TRUE)
+            break()
+          endif()
+        ENDFOREACH(cc_file)
+
+        if (use_coverage_opt)
+          message(STATUS "cc changed, add coverage opt for ${TARGET_NAME}")
+          target_compile_options(${TARGET_NAME} PRIVATE -g -O0 -fprofile-arcs -ftest-coverage)
+          target_link_libraries(${TARGET_NAME} -fprofile-arcs)
+          get_target_property(WH_TARGET_COMPILE_OPTIONS ${TARGET_NAME} COMPILE_OPTIONS)
+          message(STATUS "property for ${TARGET_NAME} is ${WH_TARGET_COMPILE_OPTIONS}")
+        endif()
+      endif()
+    endif()
+  endif()
+endfunction(check_coverage_opt)
+
+
 function(cc_library TARGET_NAME)
   set(options STATIC static SHARED shared INTERFACE interface)
   set(oneValueArgs "")
@@ -325,6 +351,9 @@ function(cc_library TARGET_NAME)
         list(APPEND cc_library_HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/${source}.h)
       endif()
     endforeach()
+
+    check_coverage_opt(${TARGET_NAME} ${cc_library_SRCS})
+
   else(cc_library_SRCS)
     if(cc_library_DEPS)
       list(REMOVE_DUPLICATES cc_library_DEPS)
@@ -352,6 +381,9 @@ function(cc_binary TARGET_NAME)
   endif()
   get_property(os_dependency_modules GLOBAL PROPERTY OS_DEPENDENCY_MODULES)
   target_link_libraries(${TARGET_NAME} ${os_dependency_modules})
+
+  check_coverage_opt(${TARGET_NAME} ${cc_binary_SRCS})
+
 endfunction(cc_binary)
 
 function(cc_test_build TARGET_NAME)
@@ -371,6 +403,9 @@ function(cc_test_build TARGET_NAME)
     add_dependencies(${TARGET_NAME} ${cc_test_DEPS} paddle_gtest_main lod_tensor memory gtest gflags glog)
     common_link(${TARGET_NAME})
   endif()
+
+  check_coverage_opt(${TARGET_NAME} ${cc_test_SRCS})
+
 endfunction()
 
 function(cc_test_run TARGET_NAME)
@@ -532,6 +567,9 @@ function(hip_library TARGET_NAME)
           list(APPEND hip_library_HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/${source}.h)
         endif()
       endforeach()
+
+      check_coverage_opt(${TARGET_NAME} ${hip_library_SRCS})
+
     else(hip_library_SRCS)
       if (hip_library_DEPS)
         merge_static_libs(${TARGET_NAME} ${hip_library_DEPS})
@@ -555,6 +593,9 @@ function(hip_binary TARGET_NAME)
       common_link(${TARGET_NAME})
     endif()
   endif()
+
+  check_coverage_opt(${TARGET_NAME} ${hip_binary_SRCS})
+
 endfunction(hip_binary)
 
 function(hip_test TARGET_NAME)
@@ -576,6 +617,9 @@ function(hip_test TARGET_NAME)
     common_link(${TARGET_NAME})
     add_test(${TARGET_NAME} ${TARGET_NAME})
   endif()
+
+  check_coverage_opt(${TARGET_NAME} ${hip_test_SRCS})
+
 endfunction(hip_test)
 
 function(go_library TARGET_NAME)
@@ -655,6 +699,9 @@ function(go_binary TARGET_NAME)
     WORKING_DIRECTORY "${PADDLE_IN_GOPATH}/go")
   add_custom_target(${TARGET_NAME} ALL DEPENDS go_vendor ${TARGET_NAME}_timestamp ${go_binary_DEPS})
   install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${TARGET_NAME} DESTINATION bin)
+
+  check_coverage_opt(${TARGET_NAME} ${go_binary_SRCS})
+
 endfunction(go_binary)
 
 function(go_test TARGET_NAME)
@@ -743,13 +790,23 @@ function(py_test TARGET_NAME)
     cmake_parse_arguments(py_test "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
 
     if(WITH_COVERAGE)
-      add_test(NAME ${TARGET_NAME}
-               COMMAND ${CMAKE_COMMAND} -E env FLAGS_init_allocated_mem=true FLAGS_cudnn_deterministic=true
-               FLAGS_cpu_deterministic=true
-               PYTHONPATH=${PADDLE_BINARY_DIR}/python ${py_test_ENVS}
-               COVERAGE_FILE=${PADDLE_BINARY_DIR}/python-coverage.data
-               ${PYTHON_EXECUTABLE} -m coverage run --branch -p ${py_test_SRCS} ${py_test_ARGS}
-               WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+      if ("$ENV{PADDLE_GIT_DIFF_PY_FILE}" STREQUAL "")
+        add_test(NAME ${TARGET_NAME}
+                COMMAND ${CMAKE_COMMAND} -E env FLAGS_init_allocated_mem=true FLAGS_cudnn_deterministic=true
+                FLAGS_cpu_deterministic=true
+                PYTHONPATH=${PADDLE_BINARY_DIR}/python ${py_test_ENVS}
+                ${PYTHON_EXECUTABLE} -u ${py_test_SRCS} ${py_test_ARGS}
+                WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+
+      else()
+        add_test(NAME ${TARGET_NAME}
+                COMMAND ${CMAKE_COMMAND} -E env FLAGS_init_allocated_mem=true FLAGS_cudnn_deterministic=true
+                FLAGS_cpu_deterministic=true
+                PYTHONPATH=${PADDLE_BINARY_DIR}/python ${py_test_ENVS}
+                COVERAGE_FILE=${PADDLE_BINARY_DIR}/python-coverage.data
+                ${PYTHON_EXECUTABLE} -m coverage run --branch -p --include=$ENV{PADDLE_GIT_DIFF_PY_FILE} ${py_test_SRCS} ${py_test_ARGS}
+                WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+      endif()
     else()
       add_test(NAME ${TARGET_NAME}
                COMMAND ${CMAKE_COMMAND} -E env FLAGS_init_allocated_mem=true FLAGS_cudnn_deterministic=true
diff --git a/paddle/scripts/paddle_build.sh b/paddle/scripts/paddle_build.sh
index 1c6e6e4f3bffcd066bea6b776f8e4884ae8f69ca..12077781da5b8779524216f0d104437e0cdb32bd 100755
--- a/paddle/scripts/paddle_build.sh
+++ b/paddle/scripts/paddle_build.sh
@@ -766,6 +766,16 @@ function check_approvals_of_unittest() {
     set -x
 }
 
+function check_diff_file_for_coverage() {
+    diff_h_file=$(git diff --name-status test develop | awk '$1 != "D" {print $2}' | grep '\.h$' | awk -F "/" '{printf "%s,",$NF}')
+    diff_cc_file=$(git diff --name-status test develop | awk '$1 != "D" {print $2}' | grep -E '\.(cc|c)$' | awk -F "/" '{printf "%s,",$NF}')
+    diff_py_file=$(git diff --name-status test develop | grep '\.py$' | awk '$1 != "D" {printf "%s,",$2}')
+
+    export PADDLE_GIT_DIFF_H_FILE=${diff_h_file%*,}
+    export PADDLE_GIT_DIFF_CC_FILE=${diff_cc_file%*,}
+    export PADDLE_GIT_DIFF_PY_FILE=${diff_py_file%*,}
+}
+
 function check_change_of_unittest() {
     generate_unittest_spec "PR"
     fetch_upstream_develop_if_not_exist
@@ -1720,6 +1730,7 @@ function main() {
         ;;
       cicheck_coverage)
         check_approvals_of_unittest 1
+        check_diff_file_for_coverage
         cmake_gen_and_build ${PYTHON_ABI:-""} ${parallel_number}
         enable_unused_var_check
         parallel_test
diff --git a/python/paddle/fluid/tests/unittests/CMakeLists.txt b/python/paddle/fluid/tests/unittests/CMakeLists.txt
index 1ddafa97a500e0c9f40f54dc68092ed9707752d8..b6a99498c7c9911ecdd921a5562c5d2ec05b0ee7 100644
--- a/python/paddle/fluid/tests/unittests/CMakeLists.txt
+++ b/python/paddle/fluid/tests/unittests/CMakeLists.txt
@@ -207,16 +207,23 @@ function(py_test_modules TARGET_NAME)
     cmake_parse_arguments(py_test_modules "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
 
     if(WITH_COVERAGE)
-      add_test(NAME ${TARGET_NAME}
-          COMMAND ${CMAKE_COMMAND} -E env PYTHONPATH=${PADDLE_BINARY_DIR}/python ${py_test_modules_ENVS}
-          COVERAGE_FILE=${PADDLE_BINARY_DIR}/python-coverage.data
-          ${PYTHON_EXECUTABLE} -m coverage run --branch -p ${PADDLE_SOURCE_DIR}/tools/test_runner.py ${py_test_modules_MODULES}
-          WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+        if ("$ENV{PADDLE_GIT_DIFF_PY_FILE}" STREQUAL "")
+            add_test(NAME ${TARGET_NAME}
+                    COMMAND ${CMAKE_COMMAND} -E env PYTHONPATH=${PADDLE_BINARY_DIR}/python ${py_test_modules_ENVS}
+                    ${PYTHON_EXECUTABLE} ${PADDLE_SOURCE_DIR}/tools/test_runner.py ${py_test_modules_MODULES}
+                    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+        else()
+            add_test(NAME ${TARGET_NAME}
+                    COMMAND ${CMAKE_COMMAND} -E env PYTHONPATH=${PADDLE_BINARY_DIR}/python ${py_test_modules_ENVS}
+                    COVERAGE_FILE=${PADDLE_BINARY_DIR}/python-coverage.data
+                    ${PYTHON_EXECUTABLE} -m coverage run --branch -p --include=$ENV{PADDLE_GIT_DIFF_PY_FILE} ${PADDLE_SOURCE_DIR}/tools/test_runner.py ${py_test_modules_MODULES}
+                    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+        endif()
     else()
-      add_test(NAME ${TARGET_NAME}
-          COMMAND ${CMAKE_COMMAND} -E env PYTHONPATH=${PADDLE_BINARY_DIR}/python ${py_test_modules_ENVS}
-          ${PYTHON_EXECUTABLE} ${PADDLE_SOURCE_DIR}/tools/test_runner.py ${py_test_modules_MODULES}
-          WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+        add_test(NAME ${TARGET_NAME}
+                COMMAND ${CMAKE_COMMAND} -E env PYTHONPATH=${PADDLE_BINARY_DIR}/python ${py_test_modules_ENVS}
+                ${PYTHON_EXECUTABLE} ${PADDLE_SOURCE_DIR}/tools/test_runner.py ${py_test_modules_MODULES}
+                WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
     endif()
 
     if (py_test_modules_SERIAL)
diff --git a/tools/coverage/paddle_coverage.sh b/tools/coverage/paddle_coverage.sh
index 008b35d01ca565a6d32265f595dd2d6aa55be707..148a27358ede03c57815aa2827a5165bc8c14490 100644
--- a/tools/coverage/paddle_coverage.sh
+++ b/tools/coverage/paddle_coverage.sh
@@ -1,5 +1,19 @@
 #!/usr/bin/env bash
 
+# 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.
+
 set -xe
 
 PADDLE_ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}")/../../" && pwd )"