diff --git a/CMakeLists.txt b/CMakeLists.txt
index 072c9873..4e307c80 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -108,7 +108,7 @@ IF(NOT CMAKE_SYSTEM_NAME)
       "Target operating system is not specified. "
       "cpuinfo will compile, but cpuinfo_initialize() will always fail.")
   SET(CPUINFO_SUPPORTED_PLATFORM FALSE)
-ELSEIF(NOT CMAKE_SYSTEM_NAME MATCHES "^(Windows|WindowsStore|CYGWIN|MSYS|Darwin|Linux|Android|FreeBSD|Emscripten)$")
+ELSEIF(NOT CMAKE_SYSTEM_NAME MATCHES "^(Windows|WindowsStore|CYGWIN|MSYS|Darwin|Linux|Android|FreeBSD|Emscripten|OHOS)$")
   IF(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.14" AND NOT IS_APPLE_OS)
     MESSAGE(WARNING
       "Target operating system \"${CMAKE_SYSTEM_NAME}\" is not supported in cpuinfo. "
@@ -193,7 +193,7 @@ IF(CPUINFO_SUPPORTED_PLATFORM)
     LIST(APPEND CPUINFO_SRCS
       src/arm/uarch.c
       src/arm/cache.c)
-    IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android")
+    IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android" OR CMAKE_SYSTEM_NAME STREQUAL "OHOS")
       LIST(APPEND CPUINFO_SRCS
         src/arm/linux/init.c
         src/arm/linux/cpuinfo.c
@@ -232,7 +232,7 @@ IF(CPUINFO_SUPPORTED_PLATFORM)
       src/emscripten/init.c)
   ENDIF()
 
-  IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android")
+  IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android" OR CMAKE_SYSTEM_NAME STREQUAL "OHOS")
     LIST(APPEND CPUINFO_SRCS
       src/linux/smallfile.c
       src/linux/multiline.c
@@ -244,7 +244,7 @@ IF(CPUINFO_SUPPORTED_PLATFORM)
     LIST(APPEND CPUINFO_SRCS src/freebsd/topology.c)
   ENDIF()
 
-  IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android" OR CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
+  IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android" OR CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" OR CMAKE_SYSTEM_NAME STREQUAL "OHOS")
     SET(CMAKE_THREAD_PREFER_PTHREAD TRUE)
     SET(THREADS_PREFER_PTHREAD_FLAG TRUE)
     FIND_PACKAGE(Threads REQUIRED)
@@ -304,7 +304,7 @@ TARGET_COMPILE_DEFINITIONS(cpuinfo_internals PRIVATE "CPUINFO_LOG_TO_STDIO=1")
 
 IF(CPUINFO_SUPPORTED_PLATFORM)
   TARGET_COMPILE_DEFINITIONS(cpuinfo INTERFACE CPUINFO_SUPPORTED_PLATFORM=1)
-  IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android")
+  IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android" OR CMAKE_SYSTEM_NAME STREQUAL "OHOS")
     TARGET_LINK_LIBRARIES(cpuinfo PUBLIC ${CMAKE_THREAD_LIBS_INIT})
     TARGET_LINK_LIBRARIES(cpuinfo_internals PUBLIC ${CMAKE_THREAD_LIBS_INIT})
     TARGET_COMPILE_DEFINITIONS(cpuinfo PRIVATE _GNU_SOURCE=1)
@@ -377,7 +377,7 @@ IF(CPUINFO_SUPPORTED_PLATFORM AND CPUINFO_BUILD_MOCK_TESTS)
   IF(CPUINFO_TARGET_PROCESSOR MATCHES "^(i[3-6]86|AMD64|x86(_64)?)$")
     LIST(APPEND CPUINFO_MOCK_SRCS src/x86/mockcpuid.c)
   ENDIF()
-  IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android")
+  IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android" OR CMAKE_SYSTEM_NAME STREQUAL "OHOS")
     LIST(APPEND CPUINFO_MOCK_SRCS src/linux/mockfile.c)
   ENDIF()
 
@@ -390,7 +390,7 @@ IF(CPUINFO_SUPPORTED_PLATFORM AND CPUINFO_BUILD_MOCK_TESTS)
   TARGET_COMPILE_DEFINITIONS(cpuinfo_mock PUBLIC "CPUINFO_MOCK=1")
   TARGET_COMPILE_DEFINITIONS(cpuinfo_mock PRIVATE "CPUINFO_LOG_LEVEL=5")
   TARGET_COMPILE_DEFINITIONS(cpuinfo_mock PRIVATE "CPUINFO_LOG_TO_STDIO=1")
-  IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android")
+  IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android" OR CMAKE_SYSTEM_NAME STREQUAL "OHOS")
     TARGET_LINK_LIBRARIES(cpuinfo_mock PUBLIC ${CMAKE_THREAD_LIBS_INIT})
     TARGET_COMPILE_DEFINITIONS(cpuinfo_mock PRIVATE _GNU_SOURCE=1)
   ENDIF()