diff --git a/common/build.sh b/common/build.sh
index 61d6e0b..a274d4f 100755
--- a/common/build.sh
+++ b/common/build.sh
@@ -24,6 +24,7 @@ usage()
 	echo "rootfs             -build default rootfs, currently build buildroot as default"
 	echo "buildroot          -build buildroot rootfs"
 	echo "ramboot            -build ramboot image"
+	echo "multi-npu_boot     -build boot image for multi-npu board"
 	echo "yocto              -build yocto rootfs, currently build ros as default"
 	echo "ros                -build ros rootfs"
 	echo "debian             -build debian rootfs"
@@ -113,6 +114,23 @@ function build_ramboot(){
 	fi
 }
 
+function build_multi-npu_boot(){
+	if [ -z "$RK_MULTINPU_BOOT" ]; then
+		echo "=========Please set 'RK_MULTINPU_BOOT=y' in BoardConfig.mk========="
+		exit 1
+	fi
+        echo "=========Start build multi-npu boot========="
+        echo "TARGET_RAMBOOT_CONFIG=$RK_CFG_RAMBOOT"
+        echo "====================================="
+	/usr/bin/time -f "you take %E to build multi-npu boot" $COMMON_DIR/mk-multi-npu_boot.sh
+	if [ $? -eq 0 ]; then
+		echo "====Build multi-npu boot ok!===="
+	else
+		echo "====Build multi-npu boot failed!===="
+		exit 1
+	fi
+}
+
 function build_rootfs(){
 	build_buildroot
 }
@@ -310,6 +328,9 @@ elif [ $BUILD_TARGET == recovery ];then
 elif [ $BUILD_TARGET == ramboot ];then
     build_ramboot
     exit 0
+elif [ $BUILD_TARGET == multi-npu_boot ];then
+    build_multi-npu_boot
+    exit 0
 elif [ $BUILD_TARGET == pcba ];then
     build_pcba
     exit 0
diff --git a/common/mk-multi-npu_boot.sh b/common/mk-multi-npu_boot.sh
new file mode 100755
index 0000000..fccf5cf
--- /dev/null
+++ b/common/mk-multi-npu_boot.sh
@@ -0,0 +1,84 @@
+#!/bin/bash
+
+COMMON_DIR=$(cd `dirname $0`; pwd)
+if [ -h $0 ]
+then
+        CMD=$(readlink $0)
+        COMMON_DIR=$(dirname $CMD)
+fi
+cd $COMMON_DIR
+cd ../../..
+TOP_DIR=$(pwd)
+echo "config is $RK_CFG_BUILDROOT"
+if [ -z $RK_CFG_BUILDROOT ]
+then
+	echo "config for building doesn't exist, skip!"
+	exit 0
+fi
+
+source $TOP_DIR/buildroot/build/envsetup.sh $RK_CFG_BUILDROOT
+make
+
+KERNEL_IMAGE=$TOP_DIR/$RK_KERNEL_IMG
+KERNEL_DTB=$TOP_DIR/kernel/resource.img
+UBOOT_DIR=$TOP_DIR/u-boot/
+CPIO_IMG=$TOP_DIR/buildroot/output/$RK_CFG_BUILDROOT/images/rootfs.cpio.gz
+TARGET_IMAGE=$TOP_DIR/rockdev/$MULTINPU_BOOT_IMG
+TARGET_DIR=$TOP_DIR/buildroot/output/$RK_CFG_BUILDROOT/target/opt
+
+echo -n "pack $MULTINPU_BOOT_IMG..."
+
+if [ -f $TARGET_DIR/boot.img ]
+then
+	echo "remove old boot image"
+	rm $TARGET_DIR/boot.img
+fi
+
+# build kernel
+if [ -f $KERNEL_IMAGE ]
+then
+	echo "found kernel image"
+else
+	echo "kernel image doesn't exist, now build kernel image"
+	$TOP_DIR/build.sh kernel
+	if [ $? -eq 0 ]; then
+		echo "build kernel done"
+	else
+		exit 1
+	fi
+fi
+
+# build uboot
+if [ -f $UBOOT_DIR/uboot.img ]
+then
+	echo "found uboot image"
+else
+	echo "uboot image doesn't exist, now build uboot image"
+	$TOP_DIR/build.sh uboot
+	if [ $? -eq 0 ]; then
+		echo "build uboot done"
+	else
+		exit 1
+	fi
+fi
+
+cp $UBOOT_DIR/uboot.img $TARGET_DIR/uboot.img
+cp $UBOOT_DIR/trust.img $TARGET_DIR/trust.img
+cp $UBOOT_DIR/rk3399pro_npu_loader* $TARGET_DIR/MiniLoaderAll.bin
+cp $KERNEL_IMAGE $TARGET_DIR/
+
+# check if follower board need other dts
+if [ -z $RK_KERNEL_SECOND_DTS ]
+then
+	cp $KERNEL_DTB $TARGET_DIR/
+else
+	cd $TOP_DIR/kernel
+	make
+	scripts/resource_tool --image=second_resource.img arch/arm64/boot/dts/rockchip/$RK_KERNEL_SECOND_DTS.dtb
+	cp second_resource.img $TARGET_DIR/resource.img
+	cd $TOP_DIR
+fi
+
+make
+$TOP_DIR/kernel/scripts/mkbootimg --kernel $KERNEL_IMAGE --ramdisk $CPIO_IMG --second $KERNEL_DTB -o $TARGET_DIR/boot.img
+echo "done."
diff --git a/rk1808/BoardConfig_rk1808_multi.mk b/rk1808/BoardConfig_rk1808_multi.mk
new file mode 100755
index 0000000..211b840
--- /dev/null
+++ b/rk1808/BoardConfig_rk1808_multi.mk
@@ -0,0 +1,50 @@
+#!/bin/bash
+
+# Target arch
+export RK_ARCH=arm64
+# Uboot defconfig
+export RK_UBOOT_DEFCONFIG=rk3399pro-npu
+# Kernel defconfig
+export RK_KERNEL_DEFCONFIG=rk1808_x4_linux_defconfig
+# main board kernel dts
+export RK_KERNEL_DTS=rk1808-evb-x4
+# second board kernel dts
+export RK_KERNEL_SECOND_DTS=rk1808-evb-x4-second
+# boot image type
+export RK_BOOT_IMG=
+# kernel image path
+export RK_KERNEL_IMG=kernel/arch/arm64/boot/Image
+# parameter for GPT table
+export RK_PARAMETER=parameter-buildroot.txt
+# Buildroot config
+export RK_CFG_BUILDROOT=rockchip_rk1808-multi
+# Recovery config
+export RK_CFG_RECOVERY=
+# ramboot config
+export RK_CFG_RAMBOOT=
+# Pcba config
+export RK_CFG_PCBA=
+# Build jobs
+export RK_JOBS=12
+# target chip
+export RK_TARGET_PRODUCT=rk1808-multi
+# Set rootfs type, including ext2 ext4 squashfs
+export RK_ROOTFS_TYPE=
+# rootfs image path
+export RK_ROOTFS_IMG=
+# Set oem partition type, including ext2 squashfs
+export RK_OEM_FS_TYPE=
+# Set userdata partition type, including ext2, fat
+export RK_USERDATA_FS_TYPE=
+# Set flash type. support <emmc, nand, spi_nand, spi_nor>
+export RK_STORAGE_TYPE=
+#OEM config: /oem/dueros/aispeech/iflytekSDK/CaeDemo_VAD/smart_voice
+export RK_OEM_DIR=
+#userdata config
+export RK_USERDATA_DIR=
+#misc image
+export RK_MISC=
+#choose enable distro module
+export RK_DISTRO_MODULE=
+#enable multi-npu-boot image auto-build
+export RK_MULTINPU_BOOT=y