diff --git a/rtos/meta-openeuler-rtos/README.md b/rtos/meta-openeuler-rtos/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/rtos/meta-openeuler-rtos/conf/layer.conf b/rtos/meta-openeuler-rtos/conf/layer.conf
new file mode 100644
index 0000000000000000000000000000000000000000..1a3de1c871d0c3e9648d4cca136a9bee4b7aae43
--- /dev/null
+++ b/rtos/meta-openeuler-rtos/conf/layer.conf
@@ -0,0 +1,28 @@
+# We have a conf and classes directory, add to BBPATH
+BBPATH =. "${LAYERDIR}:"
+
+# We have recipes-* directories, add to BBFILES
+BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \
+            ${LAYERDIR}/recipes-*/*/*.bbappend"
+
+BBFILE_COLLECTIONS += "openeuler-rtos"
+BBFILE_PATTERN_openeuler-rtos = "^${LAYERDIR}/"
+BBFILE_PRIORITY_openeuler-rtos = "25"
+
+LAYERSERIES_COMPAT_openeuler-rtos = "hardknott"
+#no bb file under meta-openeuler-rtos, set it to 1 to ignore "No bb files" warning
+BBFILE_PATTERN_IGNORE_EMPTY_openeuler-rtos = "1"
+
+
+#enable RTOS specific .bb
+BBFILES_DYNAMIC += " \
+rtthread:${LAYERDIR}/rtthread/*.bb \
+rtthread:${LAYERDIR}/rtthread/*.bbappend \
+"
+# Most rtos can't be built directly with xxx-linux-gcc toolchain, because of C library
+# A baremetal gcc toolchain is needed. The following variables are used to
+# describe the baremetal gcc toolchain. By default, Zephyr Project's toolchain
+# is used and can be downloaded from Zephyr Project's github repo.
+OPENEULER_RTOS_TOOLCHAIN_DIR_aarch64 ?= "/opt/zephyr-sdk/aarch64-zephyr-elf/bin"
+OPENEULER_RTOS_TOOLCHAIN_PREFIX_aarch64 ?= "aarch64-zephyr-elf-"
+
diff --git a/rtos/meta-rtthread/README.md b/rtos/meta-rtthread/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..c9f2232e51daa4cb9380555c7339685eda165e79
--- /dev/null
+++ b/rtos/meta-rtthread/README.md
@@ -0,0 +1,31 @@
+# RT-Thread 构建支持
+
+本元构建层(meta-layer)包含了在openEuler Yocto构建环境下集成构建RT-Thread的相关配置和配方。
+
+## 使用
+
+1. RT-Thread代码包的准备： 应事先将RT-Thread的[代码包](https://github.com/RT-Thread/rt-thread/archive/refs/tags/v4.0.5.tar.gz)下载放于OPENEULER_SP_DIR中，目录和文件名格式为rtthread/rtthread-${PV}.tar.gz.当前支持的最新版本是4.0.5
+
+2. 在Yocto构建目录的bblayers.conf中添加相应的元构建层
+
+```
+  BBLAYERS ?= "\
+  ......
+  xxxxx/yocto-meta-openeuler/rtos/meta-openeuler-rtos \
+  xxxxx/yocto-meta-openeuler/rtos/meta-rtthread \
+  "
+```
+
+3. 构建rt-thread所需工具。构建rt-thread需要在构建主机上安装好scons构建工具，并在meta-openeuler-rtos/conf/layer.conf中填好构建RT-Thread所需工具链的路径和前缀。目前构建RT-Thread不能使用构建Linux的GCC工具链，例如xxx-linux-glibc-gcc，需要集成newlibc的工具链。一个例子如下所示：
+
+```
+OPENEULER_RTOS_TOOLCHAIN_DIR_aarch64 ?= "/opt/zephyr-sdk/aarch64-zephyr-elf/bin"
+OPENEULER_RTOS_TOOLCHAIN_PREFIX_aarch64
+```
+
+4. 构建rt-thread.
+```
+    bitbake rtthread
+```
+
+rtthread构建的结果文件会安装在/lib/rtthread目录，并打包成rpm文件。
\ No newline at end of file
diff --git a/rtos/meta-rtthread/conf/layer.conf b/rtos/meta-rtthread/conf/layer.conf
new file mode 100644
index 0000000000000000000000000000000000000000..b2b64650fd42cafae4b3e98fad7583381f044173
--- /dev/null
+++ b/rtos/meta-rtthread/conf/layer.conf
@@ -0,0 +1,19 @@
+# We have a conf and classes directory, add to BBPATH
+BBPATH .= ":${LAYERDIR}"
+
+# We have recipes-* directories, add to BBFILES
+BBFILES += "${LAYERDIR}/recipes-*/*.bb \
+            ${LAYERDIR}/recipes-*/*.bbappend"
+
+BBFILE_COLLECTIONS += "rtthread"
+BBFILE_PATTERN_rtthread = "^${LAYERDIR}/"
+BBFILE_PRIORITY_rtthread = "24"
+
+LAYERVERSION_rtthread = "1"
+
+LAYERDEPENDS_rtthread = "core"
+
+LAYERSERIES_COMPAT_rtthread = "hardknott"
+
+# rtthread is built with scons
+HOSTTOOLS_append = " scons"
diff --git a/rtos/meta-rtthread/recipes-kernel/files/0001-bsp-modify-the-rtconfig.py-for-openeuler.patch b/rtos/meta-rtthread/recipes-kernel/files/0001-bsp-modify-the-rtconfig.py-for-openeuler.patch
new file mode 100644
index 0000000000000000000000000000000000000000..c0ff5d7c91f1c923539f6051fb629f946886e618
--- /dev/null
+++ b/rtos/meta-rtthread/recipes-kernel/files/0001-bsp-modify-the-rtconfig.py-for-openeuler.patch
@@ -0,0 +1,44 @@
+From 9a2252f77d2beadc68ba6cdc03b3019f48db8220 Mon Sep 17 00:00:00 2001
+From: Wayne Ren <renwei41@huawei.com>
+Date: Fri, 18 Feb 2022 21:32:59 +0800
+Subject: [PATCH] bsp: modify the rtconfig.py for openeuler
+
+- change toolchain prefix
+- openeuler supports cortex-a57
+
+Signed-off-by: Wayne Ren <renwei41@huawei.com>
+---
+ bsp/qemu-virt64-aarch64/rtconfig.py | 10 ++++++++--
+ 1 file changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/bsp/qemu-virt64-aarch64/rtconfig.py b/bsp/qemu-virt64-aarch64/rtconfig.py
+index e46a4374a..ebcc4b03e 100644
+--- a/bsp/qemu-virt64-aarch64/rtconfig.py
++++ b/bsp/qemu-virt64-aarch64/rtconfig.py
+@@ -27,7 +27,13 @@ BUILD = 'debug'
+ 
+ if PLATFORM == 'gcc':
+     # toolchains
+-    PREFIX = 'aarch64-elf-'
++    if os.getenv('OPENEULER_RTT_GCC_PREFIX'):
++        PREFIX = os.getenv('OPENEULER_RTT_GCC_PREFIX')
++        TARGET_TUNE = ' -g -march=armv8-a -mtune=cortex-a57'
++    else:
++        PREFIX = 'aarch64-elf-'
++        TARGET_TUNE = ' -g -march=armv8-a -mtune=cortex-a53'
++
+     CC      = PREFIX + 'gcc'
+     CXX     = PREFIX + 'g++'
+     AS      = PREFIX + 'gcc'
+@@ -38,7 +44,7 @@ if PLATFORM == 'gcc':
+     OBJDUMP = PREFIX + 'objdump'
+     OBJCPY  = PREFIX + 'objcopy'
+ 
+-    DEVICE = ' -g -march=armv8-a -mtune=cortex-a53'
++    DEVICE = TARGET_TUNE
+     CFLAGS = DEVICE + ' -Wall'
+     AFLAGS = ' -c' + ' -x assembler-with-cpp -D__ASSEMBLY__'
+     LFLAGS  = DEVICE + ' -nostartfiles -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,system_vectors -T link.lds'
+-- 
+2.30.2
+
diff --git a/rtos/meta-rtthread/recipes-kernel/rtthread.inc b/rtos/meta-rtthread/recipes-kernel/rtthread.inc
new file mode 100644
index 0000000000000000000000000000000000000000..dbcf499f332a007a2d1329a133f36eead7591540
--- /dev/null
+++ b/rtos/meta-rtthread/recipes-kernel/rtthread.inc
@@ -0,0 +1,98 @@
+### Descriptive metadata: SUMMARY,DESCRITPION, HOMEPAGE, AUTHOR, BUGTRACKER
+SUMMARY = "RT-Thread "
+DESCRITPION = "A well-known open source RTOS from China"
+AUTHOR = ""
+HOMEPAGE = "https://github.com/RT-Thread/rt-thread"
+BUGTRACKER = "https://gitee.com/openeuler/yocto-meta-openeuler"
+### Package manager metadata: SECTION, PRIOIRTY(only for deb, opkg)
+SECTION = "RTOS"
+
+### License metadata
+LICENSE = "Apache-2.0"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=86d3f3a95c324c9479bd8986968f4327"
+
+### Inheritance and includes if needed
+## rtthread is built by scons, so we need to inherit scons.bbclass
+#inherit scons
+
+### Build metadata: SRC_URI, SRCDATA, S, B, FILESEXTRAPATHS....
+SRC_URI = "file://rtthread/rtthread-${PV}.tar.gz \
+           file://0001-bsp-modify-the-rtconfig.py-for-openeuler.patch"
+
+S = "${WORKDIR}/${BPN}-${PV}"
+
+# the software packages required in build
+# rtthread needs to be built with gcc toolchain with newlibc
+# it's better to use pre-built toolchain, e.g. aarch64-elf-xxx
+# DEPENDS =
+
+# according to yocto's parameters, e.g., MACHINE, ARCH, to get
+# rtthread's parameters
+
+export RTT_EXEC_PATH = "${OPENEULER_RTOS_TOOLCHAIN_DIR}"
+export RTT_CC = "gcc"
+export OPENEULER_RTT_GCC_PREFIX = "${OPENEULER_RTOS_TOOLCHAIN_PREFIX}"
+
+
+def get_rtthread_bsp(d):
+
+    supported_machine = {
+        "qemu_aarch64": "qemu-virt64-aarch64",
+    }
+
+    machine = d.getVar("MACHINE_ARCH",True)
+
+    if not machine in supported_machine:
+        bb.error("unsupported target arch:%s" % machine)
+        return ""
+
+    return "bsp/" + supported_machine[machine]
+
+RTTHREAD_BSPDIR = "${@get_rtthread_bsp(d)}"
+
+# alias package name
+PROVIDES += "rtthread"
+
+### Runtime metadata
+#HOSTOOLS += "scons"
+PACKAGES = "${PN}"
+### Package metadata
+FILES_${PN} = " \
+    ${libdir}/rtthread/rtthread.elf \
+    ${libdir}/rtthread/rtthread.bin \
+    ${libdir}/rtthread/rtthread.map \
+"
+### Tasks for package
+python () {
+    d.delVar('CFLAGS')
+    d.delVar('CXXFLAGS')
+    d.delVar('LDFLAGS')
+    d.delVar('CC')
+    d.delVar('AR')
+    d.delVar('LD')
+    d.delVar('NM')
+    d.delVar('OBJCOPY')
+}
+
+#bypass package_qa as the deleted LDFLAGS will cause error
+do_package_qa() {
+    echo "do package qa"
+}
+
+#bypass configure as RTT has no configure phase
+do_configure() {
+    :
+}
+
+#call host's scons to compile rtt. You need to install the
+#host tools required by rtt
+do_compile() {
+    pushd ${S}/${RTTHREAD_BSPDIR}
+    scons
+    popd
+}
+
+do_install() {
+    install -d ${D}${libdir}/rtthread
+    install -m 644 -D ${S}/${RTTHREAD_BSPDIR}/rtthread.* ${D}${libdir}/rtthread/
+}
diff --git a/rtos/meta-rtthread/recipes-kernel/rtthread_4.0.5.bb b/rtos/meta-rtthread/recipes-kernel/rtthread_4.0.5.bb
new file mode 100644
index 0000000000000000000000000000000000000000..9c474d820e61183c4e7b988c903b2d1e66cbafde
--- /dev/null
+++ b/rtos/meta-rtthread/recipes-kernel/rtthread_4.0.5.bb
@@ -0,0 +1 @@
+require rtthread.inc
\ No newline at end of file