diff --git a/BUILD.md b/BUILD.md
index c61342fc..2f642d65 100644
--- a/BUILD.md
+++ b/BUILD.md
@@ -265,23 +265,25 @@ Extra requirements for Windows host:
   ```bash
   DOCKER=docker # or podman
   SOURCE_DIR=/build/RedPanda-CPP # source directory *in container*
+  JOBS=$(nproc) # reduce it for multiple builds at same time
 
   MIRROR=mirrors.kernel.org # leave empty for default mirror
   PLATFORM=linux/amd64 # or linux/386, linux/arm64/v8, linux/arm/v7, linux/riscv64
   IMAGE=debian:12 # or Ubuntu (e.g. ubuntu:22.04)
 
-  $DOCKER run --rm -e MIRROR=$MIRROR -e SOURCE_DIR=$SOURCE_DIR -v $PWD:$SOURCE_DIR --platform $PLATFORM $IMAGE $SOURCE_DIR/packages/debian/01-in-docker.sh
+  $DOCKER run --rm -e MIRROR=$MIRROR -e SOURCE_DIR=$SOURCE_DIR -e JOBS=$JOBS -v $PWD:$SOURCE_DIR --platform $PLATFORM $IMAGE $SOURCE_DIR/packages/debian/01-in-docker.sh
   ```
 * Windows host:
   ```ps1
   $DOCKER = "docker" # or "podman"
   $SOURCE_DIR = "/build/RedPanda-CPP" # source directory *in container*
+  $JOBS = $Env:NUMBER_OF_PROCESSORS # reduce it for multiple builds at same time
 
   $MIRROR = "mirrors.kernel.org" # leave empty for default mirror
   $PLATFORM = "linux/amd64" # or "linux/386", "linux/arm64/v8", "linux/arm/v7", "linux/riscv64"
   $IMAGE = "debian:12" # or Ubuntu (e.g. "ubuntu:22.04")
 
-  & $DOCKER run --rm -e MIRROR=$MIRROR -e SOURCE_DIR=$SOURCE_DIR -v "$(Get-Location):$SOURCE_DIR" --platform $PLATFORM $IMAGE $SOURCE_DIR/packages/debian/01-in-docker.sh
+  & $DOCKER run --rm -e MIRROR=$MIRROR -e SOURCE_DIR=$SOURCE_DIR -e JOBS=$JOBS -v "$(Get-Location):$SOURCE_DIR" --platform $PLATFORM $IMAGE $SOURCE_DIR/packages/debian/01-in-docker.sh
   ```
 
 ### Manual Install
diff --git a/BUILD_cn.md b/BUILD_cn.md
index 41159fef..00c638b9 100644
--- a/BUILD_cn.md
+++ b/BUILD_cn.md
@@ -265,23 +265,25 @@ Windows 宿主的额外要求：
   ```bash
   DOCKER=docker # 或 podman
   SOURCE_DIR=/build/RedPanda-CPP # *容器内*的源代码路径
+  JOBS=$(nproc) # 同时构建多个包时可降低并行数
 
   MIRROR=mirrors.ustc.edu.cn # 留空以使用默认的镜像站
   PLATFORM=linux/amd64 # 或 linux/386、linux/arm64/v8、linux/arm/v7、linux/riscv64
   IMAGE=debian:12 # 或 Ubuntu（如 ubuntu:22.04）
 
-  $DOCKER run --rm -e MIRROR=$MIRROR -e SOURCE_DIR=$SOURCE_DIR -v $PWD:$SOURCE_DIR --platform $PLATFORM $IMAGE $SOURCE_DIR/packages/debian/01-in-docker.sh
+  $DOCKER run --rm -e MIRROR=$MIRROR -e SOURCE_DIR=$SOURCE_DIR -e JOBS=$JOBS -v $PWD:$SOURCE_DIR --platform $PLATFORM $IMAGE $SOURCE_DIR/packages/debian/01-in-docker.sh
   ```
 * Windows 宿主：
   ```ps1
   $DOCKER = "docker" # 或 "podman"
   $SOURCE_DIR = "/build/RedPanda-CPP" # *容器内*的源代码路径
+  $JOBS = $Env:NUMBER_OF_PROCESSORS # 同时构建多个包时可降低并行数
 
   $MIRROR = "mirrors.ustc.edu.cn" # 留空以使用默认的镜像站
   $PLATFORM = "linux/amd64" # 或 "linux/386"、"linux/arm64/v8"、"linux/arm/v7"、"linux/riscv64"
   $IMAGE = "debian:12" # 或 Ubuntu（如 "ubuntu:22.04"）
 
-  & $DOCKER run --rm -e MIRROR=$MIRROR -e SOURCE_DIR=$SOURCE_DIR -v "$(Get-Location):$SOURCE_DIR" --platform $PLATFORM $IMAGE $SOURCE_DIR/packages/debian/01-in-docker.sh
+  & $DOCKER run --rm -e MIRROR=$MIRROR -e SOURCE_DIR=$SOURCE_DIR -e JOBS=$JOBS -v "$(Get-Location):$SOURCE_DIR" --platform $PLATFORM $IMAGE $SOURCE_DIR/packages/debian/01-in-docker.sh
   ```
 
 ### 手动安装
diff --git a/packages/debian/01-in-docker.sh b/packages/debian/01-in-docker.sh
index 6d2d664e..08c1b7d0 100755
--- a/packages/debian/01-in-docker.sh
+++ b/packages/debian/01-in-docker.sh
@@ -5,6 +5,7 @@ set -xe
 TMP_FOLDER=/build/redpanda-build
 DISTRO_ID=$(grep ^ID= /etc/os-release | cut -d= -f2- | tr -d '"')
 VERSION_ID=$(grep ^VERSION_ID= /etc/os-release | cut -d= -f2- | tr -d '"')
+[[ -z $JOBS ]] && JOBS=$(nproc)
 
 # install deps
 default_repositories=(
@@ -50,7 +51,7 @@ cp Red_Panda_CPP.pro $TMP_FOLDER
 
 # build
 cd $TMP_FOLDER
-dpkg-buildpackage -us -uc
+dpkg-buildpackage -us -uc -j$JOBS
 
 # copy back to host
 cd ..