diff --git a/lite/tools/build_mlu.sh b/lite/tools/build_mlu.sh
index 1912efda5edc6e436cc84dbdf9919a99e1ed3279..6dd441eef9c239b0fe0a98bc34412f940bdf7ba9 100755
--- a/lite/tools/build_mlu.sh
+++ b/lite/tools/build_mlu.sh
@@ -23,7 +23,7 @@ readonly CMAKE_COMMON_OPTIONS="-DWITH_LITE=ON \
                                -DWITH_PYTHON=OFF \
                                -DLITE_WITH_ARM=OFF"
 
-readonly NUM_CORES_FOR_COMPILE=${LITE_BUILD_THREADS:-1}
+readonly NUM_CORES_FOR_COMPILE=${LITE_BUILD_THREADS:-4}
 
 readonly THIRDPARTY_TAR=https://paddle-inference-dist.bj.bcebos.com/PaddleLite/third-party-05b862.tar.gz
 readonly workspace=$(pwd)
@@ -35,7 +35,7 @@ function prepare_thirdparty {
         if [ ! -f $workspace/third-party-05b862.tar.gz ]; then
             wget $THIRDPARTY_TAR
         fi
-        tar xzf third-party-05b862.tar.gz
+        tar xvf third-party-05b862.tar.gz
     else
         # git submodule update --init --recursive
         echo "third-party is in ready"
@@ -62,12 +62,12 @@ function prepare_workspace {
 }
 
 function build_mlu {
+    prepare_workspace
     build_dir=${workspace}/build.lite.mlu
     mkdir -p $build_dir
     cd $build_dir
 
     export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$PWD/third_party/install/mklml/lib"
-    prepare_workspace
     cmake .. \
         ${CMAKE_COMMON_OPTIONS} \
         -DWITH_GPU=OFF \
@@ -77,7 +77,7 @@ function build_mlu {
         -DLITE_WITH_MLU=ON \
         -DLITE_BUILD_EXTRA=${BUILD_EXTRA} \
         -DWITH_TESTING=${WITH_TESTING} \
-        -DMLU_SDK_ROOT=${XPU_SDK_ROOT}
+        -DNEUWARE_HOME=${NEUWARE_HOME}
 
     make $TARGET_NAME -j$NUM_CORES_FOR_COMPILE