diff --git a/build.sh b/build.sh
index 5f24a52399..2354808bad 100755
--- a/build.sh
+++ b/build.sh
@@ -538,6 +538,7 @@ write_commit_file() {
 
 build_lite()
 {
+    rm -rf ${BASEPATH}/output/*
     get_version
     echo "============ Start building MindSpore Lite ${VERSION_STR} ============"
     local LOCAL_LITE_PLATFORM=${LITE_PLATFORM}