diff --git a/cmake/external_libs/libevent.cmake b/cmake/external_libs/libevent.cmake
deleted file mode 100644
index d652cf44aac54d9e1f60ba7836ad5ab2b6b678b4..0000000000000000000000000000000000000000
--- a/cmake/external_libs/libevent.cmake
+++ /dev/null
@@ -1,36 +0,0 @@
-set(openssl_USE_STATIC_LIBS ON)
-set(libevent_CFLAGS "-fPIC -fvisibility=hidden -fstack-protector-all -D_FORTIFY_SOURCE=2 -O2")
-if(NOT CMAKE_SYSTEM_NAME MATCHES "Darwin")
-    set(libevent_LDFLAGS "-Wl,-z,now")
-endif()
-
-if(NOT MINDSPORE_PROJECT_DIR)
-set(MINDSPORE_PROJECT_DIR ${CMAKE_SOURCE_DIR})
-endif()
-
-if(ENABLE_GITEE OR ENABLE_GITEE_EULER) # Channel GITEE_EULER is NOT supported now, use GITEE instead.
-    set(REQ_URL "https://gitee.com/mirrors/libevent/repository/archive/release-2.1.12-stable.tar.gz")
-    set(SHA256 "7180a979aaa7000e1264da484f712d403fcf7679b1e9212c4e3d09f5c93efc24")
-else()
-    set(REQ_URL
-      "https://github.com/libevent/libevent/releases/download/release-2.1.12-stable/libevent-2.1.12-stable.tar.gz")
-    set(SHA256 "92e6de1be9ec176428fd2367677e61ceffc2ee1cb119035037a27d346b0403bb")
-endif()
-
-message("libevent using openssl stub dir: " ${openssl_ROOT})
-
-mindspore_add_pkg(libevent
-        VER 2.1.12
-        LIBS event event_pthreads event_core event_openssl
-        URL ${REQ_URL}
-        SHA256 ${SHA256}
-        PATCHES ${MINDSPORE_PROJECT_DIR}/third_party/patch/libevent/libevent.patch001
-        CMAKE_OPTION -DCMAKE_BUILD_TYPE:STRING=Release -DBUILD_TESTING=OFF -DOPENSSL_ROOT_DIR:PATH=${openssl_ROOT}
-          -DEVENT__LIBRARY_TYPE:STRING=STATIC)
-
-include_directories(${libevent_INC})
-
-add_library(mindspore::event ALIAS libevent::event)
-add_library(mindspore::event_pthreads ALIAS libevent::event_pthreads)
-add_library(mindspore::event_core ALIAS libevent::event_core)
-add_library(mindspore::event_openssl ALIAS libevent::event_openssl)
diff --git a/mindspore-lite/CMakeLists.txt b/mindspore-lite/CMakeLists.txt
index c497ee12a09a0839cfdf1cdab3d2a72e29f94e52..2c8748097d5c7bcf64b529503560b5c427d980c1 100644
--- a/mindspore-lite/CMakeLists.txt
+++ b/mindspore-lite/CMakeLists.txt
@@ -948,7 +948,6 @@ endif()
 if(MSLITE_ENABLE_CLOUD_FUSION_INFERENCE OR MSLITE_ENABLE_CLOUD_INFERENCE)
     if(NOT MSLITE_TARGET_SITEAI)
         set(MSLITE_DEPS_MKLDNN on)
-        set(MSLITE_DEPS_LIBEVENT on)
         set(MSLITE_DEPS_PYBIND11 on)
     endif()
     if(SUPPORT_TENSORRT)
diff --git a/mindspore-lite/cmake/ccsrc_module.cmake b/mindspore-lite/cmake/ccsrc_module.cmake
index 6283cf57f36c320dbef8169df72d2d7645403025..895774a179fa2388c7611bae9618e57d87589e62 100644
--- a/mindspore-lite/cmake/ccsrc_module.cmake
+++ b/mindspore-lite/cmake/ccsrc_module.cmake
@@ -34,4 +34,3 @@ if(Python3_FOUND)
     include(${TOP_DIR}/cmake/external_libs/pybind11.cmake)
   endif()
 endif()
-include(${TOP_DIR}/cmake/external_libs/libevent.cmake)
diff --git a/mindspore-lite/cmake/lite_dependences.cmake b/mindspore-lite/cmake/lite_dependences.cmake
index 295a51cd781fd3234c2722e2f967b45e80cc3cb8..0ea3d486dbc2d573ba7e7ec417bb0ab87dd3d226 100644
--- a/mindspore-lite/cmake/lite_dependences.cmake
+++ b/mindspore-lite/cmake/lite_dependences.cmake
@@ -49,9 +49,6 @@ if(MSLITE_DEPS_MKLDNN)
     include(${TOP_DIR}/cmake/external_libs/mkl_dnn.cmake)
 endif()
 
-if(MSLITE_DEPS_LIBEVENT)
-    include(${TOP_DIR}/cmake/external_libs/libevent.cmake)
-endif()
 
 if(MSLITE_DEPS_PYBIND11)
     find_package(Python3 COMPONENTS Interpreter Development)
diff --git a/mindspore-lite/providers/siteai/CMakeLists.txt b/mindspore-lite/providers/siteai/CMakeLists.txt
index dccb9942a6eaa4f05c78935da7b2f6d1fb55a301..289851010e774fdca13457a668ddded6199766a2 100644
--- a/mindspore-lite/providers/siteai/CMakeLists.txt
+++ b/mindspore-lite/providers/siteai/CMakeLists.txt
@@ -5,7 +5,6 @@ project(SiteAi)
 set(MSLITE_DEPS_PYBIND11 on CACHE INTERNAL "setting MSLITE_DEPS_PYBIND11 value")
 set(MSLITE_DEPS_ROBIN_HOOD_HASHING off CACHE INTERNAL "setting MSLITE_DEPS_ROBIN_HOOD_HASHING value")
 set(MSLITE_DEPS_MKLDNN off CACHE INTERNAL "setting MSLITE_DEPS_MKLDNN value")
-set(MSLITE_DEPS_LIBEVENT off CACHE INTERNAL "setting MSLITE_DEPS_LIBEVENT value")
 set(MSLITE_DEPS_OPENSSL off CACHE INTERNAL "setting MSLITE_DEPS_OPENSSL value")
 set(MSLITE_DEPS_CMSIS off CACHE INTERNAL "setting MSLITE_DEPS_CMSIS value")
 
diff --git a/third_party/patch/libevent/libevent.patch001 b/third_party/patch/libevent/libevent.patch001
deleted file mode 100644
index ad8a3105de9cf3f0f41e5cbffc463ee3a9d4d355..0000000000000000000000000000000000000000
--- a/third_party/patch/libevent/libevent.patch001
+++ /dev/null
@@ -1,17 +0,0 @@
-diff -Npur libevent/CMakeLists.txt libevent-modify/CMakeLists.txt
---- libevent/CMakeLists.txt	2020-07-05 20:02:46.000000000 +0800
-+++ libevent-modify/CMakeLists.txt	2021-04-19 16:36:57.982307500 +0800
-@@ -852,7 +852,7 @@ if (NOT EVENT__DISABLE_OPENSSL)
- 
-     list(APPEND SRC_OPENSSL bufferevent_openssl.c)
-     list(APPEND HDR_PUBLIC include/event2/bufferevent_ssl.h)
--    list(APPEND LIB_APPS ${OPENSSL_LIBRARIES})
-+    list(APPEND LIB_APPS ${OPENSSL_LIBRARIES} -ldl)
- endif()
- 
- if (NOT EVENT__DISABLE_THREAD_SUPPORT)
-diff -Npur libevent/cmake/AddEventLibrary.cmake libevent-modify/cmake/AddEventLibrary.cmake
---- libevent/cmake/AddEventLibrary.cmake	2020-07-05 20:02:46.000000000 +0800
-+++ libevent-modify/cmake/AddEventLibrary.cmake	2021-04-19 16:36:57.982307500 +0800
-@@ -153,1 +153,0 @@
--                INSTALL_NAME_DIR "${CMAKE_INSTALL_PREFIX}/lib"