diff --git a/base/src/ashmem.cpp b/base/src/ashmem.cpp
index 9c347ce2b7e85ba4ac217daf0e2540b4cdc6370b..5c1348f544ea7bc963e9319fff19df2ca7a5ac9c 100644
--- a/base/src/ashmem.cpp
+++ b/base/src/ashmem.cpp
@@ -15,20 +15,11 @@
 
 #include "ashmem.h"
 
-#include <cerrno>
-#include <cstdio>
-#include <string>
 #include <fcntl.h>
-#include <linux/ashmem.h>
-#include <pthread.h>
 #include <sys/ioctl.h>
 #include <sys/mman.h>
 #include <sys/stat.h>
-#include <sys/syscall.h>
-#include <sys/sysmacros.h>
-#include <sys/types.h>
 #include <unistd.h>
-#include <dlfcn.h>
 #include "securec.h"
 #include "utils_log.h"
 
diff --git a/base/src/datetime_ex.cpp b/base/src/datetime_ex.cpp
index 3ec5508108617dc7e3f7c98b6a98253f5b3d2f27..1c00bdc9e5647906dff49d961b60c981fe2e2383 100644
--- a/base/src/datetime_ex.cpp
+++ b/base/src/datetime_ex.cpp
@@ -15,7 +15,6 @@
 
 #include "datetime_ex.h"
 #include <chrono>
-#include <cmath>
 #include "utils_log.h"
 
 using namespace std::chrono;
diff --git a/base/src/directory_ex.cpp b/base/src/directory_ex.cpp
index bac6356d160f932f8333e50d52f09df9d903eb7f..42589f0f71609d1386e5ba8781b3d171916059ff 100644
--- a/base/src/directory_ex.cpp
+++ b/base/src/directory_ex.cpp
@@ -15,7 +15,6 @@
 
 #include "directory_ex.h"
 #include <dirent.h>
-#include <cerrno>
 #include <fcntl.h>
 #include <stack>
 #include "securec.h"
diff --git a/base/src/event_demultiplexer.cpp b/base/src/event_demultiplexer.cpp
index 058fcbf0e5f59f124a9991f737bf8e8d3257cb3f..13eeb8c7f218dd3d6d85423b641e933605701fec 100644
--- a/base/src/event_demultiplexer.cpp
+++ b/base/src/event_demultiplexer.cpp
@@ -19,10 +19,6 @@
 #include "common_timer_errors.h"
 #include "utils_log.h"
 
-#include <vector>
-#include <cstdio>
-#include <strings.h>
-#include <unistd.h>
 #include <sys/epoll.h>
 
 namespace OHOS {
diff --git a/base/src/event_handler.cpp b/base/src/event_handler.cpp
index fee1cabe71374f527094583dbd0d510cc315522b..32cfb78cbc7599bd880be20d72f7b1793adfd077 100644
--- a/base/src/event_handler.cpp
+++ b/base/src/event_handler.cpp
@@ -15,7 +15,6 @@
 
 #include "event_handler.h"
 #include "event_reactor.h"
-#include <sys/epoll.h>
 
 namespace OHOS {
 namespace Utils {
diff --git a/base/src/event_reactor.cpp b/base/src/event_reactor.cpp
index b6f63e52b6d9db229fd2b825792df92e894cdad5..c61471c213ed39c8fd524ec134f356c73c92eb47 100644
--- a/base/src/event_reactor.cpp
+++ b/base/src/event_reactor.cpp
@@ -19,10 +19,6 @@
 #include "common_timer_errors.h"
 #include "utils_log.h"
 
-#include <cstdio>
-#include <unistd.h>
-#include <sys/syscall.h>
-
 namespace OHOS {
 namespace Utils {
 
diff --git a/base/src/file_ex.cpp b/base/src/file_ex.cpp
index 7ad317c9ea35c2b0226f105c84974dd5562f9923..5ef860d584fa297ec547851d49b8319ed95f212f 100644
--- a/base/src/file_ex.cpp
+++ b/base/src/file_ex.cpp
@@ -15,15 +15,7 @@
 
 #include "file_ex.h"
 #include <fstream>
-#include <iostream>
-#include <algorithm>
-#include <iterator>
-#include <sys/stat.h>
 #include <unistd.h>
-#include <fcntl.h>
-#include <cstdio>
-#include <securec.h>
-#include <cstring>
 #include "directory_ex.h"
 #include "utils_log.h"
 
diff --git a/base/src/io_event_epoll.cpp b/base/src/io_event_epoll.cpp
index 0001d42e6c7f28c3ca3c85ee0e9359bb9fbfbccb..f042f278bbcc6872f7616417f016b5dd40dfef89 100644
--- a/base/src/io_event_epoll.cpp
+++ b/base/src/io_event_epoll.cpp
@@ -12,14 +12,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#include <cstdio>
-#include <cstring>
-#include <queue>
-#include <vector>
+
 #include <sys/epoll.h>
 #include <unistd.h>
 #include "utils_log.h"
-#include "io_event_common.h"
 #include "common_event_sys_errors.h"
 #include "io_event_epoll.h"
 
diff --git a/base/src/io_event_handler.cpp b/base/src/io_event_handler.cpp
index bf75d6c4bbc2859c8a93c3e87bade163d4c9fdb4..1010f5f15bcc313f2da0b0ae3a65a9f10a89e3d3 100644
--- a/base/src/io_event_handler.cpp
+++ b/base/src/io_event_handler.cpp
@@ -13,7 +13,6 @@
  * limitations under the License.
  */
 
-#include <mutex>
 #include "utils_log.h"
 #include "common_event_sys_errors.h"
 #include "io_event_reactor.h"
diff --git a/base/src/io_event_reactor.cpp b/base/src/io_event_reactor.cpp
index ba895aa5fe64d99ab4bc5681a8c13ebe06016556..00eb324dc4da416cccde3044561f8413da51fb82 100644
--- a/base/src/io_event_reactor.cpp
+++ b/base/src/io_event_reactor.cpp
@@ -13,12 +13,6 @@
  * limitations under the License.
  */
 
-#include <atomic>
-#include <mutex>
-#include <ostream>
-#include <queue>
-#include <climits>
-#include <iostream>
 #include "utils_log.h"
 #include "common_event_sys_errors.h"
 #include "io_event_epoll.h"
diff --git a/base/src/mapped_file.cpp b/base/src/mapped_file.cpp
index a3f2f4f53b9c6f5e0c825c18f8e6b03390d7bbfe..924da8b889524a1d125af1895ecef7d4d4d50877 100644
--- a/base/src/mapped_file.cpp
+++ b/base/src/mapped_file.cpp
@@ -14,12 +14,8 @@
  */
 #include "mapped_file.h"
 
-#include <fcntl.h>
-#include <sys/stat.h>
 #include <sys/mman.h>
-#include <unistd.h>
 #include "common_mapped_file_errors.h"
-#include "errors.h"
 #include "file_ex.h"
 #include "utils_log.h"
 
diff --git a/base/src/rwlock.cpp b/base/src/rwlock.cpp
index 86baaf4457b0fdf4de6c660c90c35a4ac3c780ae..81848bcf91cb7d1244f28d9576db3a3ed90453c6 100644
--- a/base/src/rwlock.cpp
+++ b/base/src/rwlock.cpp
@@ -14,7 +14,6 @@
  */
 
 #include "rwlock.h"
-#include <cassert>
 
 namespace OHOS {
 namespace Utils {
diff --git a/base/src/semaphore_ex.cpp b/base/src/semaphore_ex.cpp
index 5023a75884a9b595aaf793e17d3f86cc042c595d..12e140f6ab70f81de7470a0a9e471f36d4b485b5 100644
--- a/base/src/semaphore_ex.cpp
+++ b/base/src/semaphore_ex.cpp
@@ -14,15 +14,6 @@
  */
 #include "semaphore_ex.h"
 
-#include <pthread.h>   // pthread_mutex_lock
-#include <sys/types.h> // pid_t
-#include <unistd.h>    // getpid
-#include <fcntl.h>     // O_CREAT
-#include <semaphore.h> // sem_t
-
-#include <sstream>     // ostringstream
-#include <iomanip>     // setw/setfill
-
 using namespace std;
 
 namespace OHOS {
diff --git a/base/src/string_ex.cpp b/base/src/string_ex.cpp
index eb56b0d0e060cbd3002c6ada24624eec4827a1e3..2416cedf689e75e16dd194e0e547d1d233343839 100644
--- a/base/src/string_ex.cpp
+++ b/base/src/string_ex.cpp
@@ -16,8 +16,6 @@
 #include "string_ex.h"
 #include "unicode_ex.h"
 #include "utils_log.h"
-#include "securec.h"
-#include <iostream>
 #include <iomanip>
 #include <sstream>
 using namespace std;
diff --git a/base/src/thread_ex.cpp b/base/src/thread_ex.cpp
index a52e0228a156d621947654cea5c0fb439cb92c68..f980912335efdc4887af875d66f46148bc20c0ac 100644
--- a/base/src/thread_ex.cpp
+++ b/base/src/thread_ex.cpp
@@ -16,7 +16,6 @@
 #include "thread_ex.h"
 #include <sys/resource.h>
 #include <sys/prctl.h>
-#include <iostream>
 #include "utils_log.h"
 
 namespace OHOS {
diff --git a/base/src/thread_pool.cpp b/base/src/thread_pool.cpp
index 8cfa83f6823fffbb779ff50fab66a1ef3ac49a97..4efd140cfdf9d9119b784cb5c79830b4c2277523 100644
--- a/base/src/thread_pool.cpp
+++ b/base/src/thread_pool.cpp
@@ -17,9 +17,6 @@
 #include "errors.h"
 #include "utils_log.h"
 
-#include <memory>
-#include <pthread.h>
-
 namespace OHOS {
 
 ThreadPool::ThreadPool(const std::string& name)
diff --git a/base/src/timer.cpp b/base/src/timer.cpp
index e921a4110c7e9aa25fbb125024c461bf3c814b05..e5c1aeb0165ef18ea7e502af0464c4968365245a 100644
--- a/base/src/timer.cpp
+++ b/base/src/timer.cpp
@@ -16,9 +16,7 @@
 #include "timer.h"
 #include "event_reactor.h"
 
-#include <algorithm>
 #include "common_timer_errors.h"
-#include <atomic>
 #include <sys/prctl.h>
 #include "timer_event_handler.h" /* for INVALID_TIMER_FD */
 #include "utils_log.h"
diff --git a/base/src/timer_event_handler.cpp b/base/src/timer_event_handler.cpp
index 0550661ea6ebaba8371789b3d3e35ae32416b63d..75e7d41156ff045b9b3776ef38d9aac775c161e4 100644
--- a/base/src/timer_event_handler.cpp
+++ b/base/src/timer_event_handler.cpp
@@ -18,7 +18,6 @@
 #include "common_timer_errors.h"
 #include "utils_log.h"
 
-#include <unistd.h>
 #include <sys/timerfd.h>
 
 namespace OHOS {
diff --git a/base/src/unicode_ex.cpp b/base/src/unicode_ex.cpp
index b0ad65a370e9543d70575e2f6833ad99040751ba..42a82fd9abed438503cb7bc95a890b09fcec8b29 100644
--- a/base/src/unicode_ex.cpp
+++ b/base/src/unicode_ex.cpp
@@ -15,10 +15,6 @@
 
 #include "unicode_ex.h"
 
-#include <climits>
-#include <cstdio>
-#include <cstdlib>
-
 #include "utils_log.h"
 using namespace std;
 /***************************************UTF8 and UTF16 unicode**********************************************