diff --git a/testcases/cli-test/swaplabel/oe_test_swaplabel.sh b/testcases/cli-test/swaplabel/oe_test_swaplabel.sh
index 3c1bf0f639e637a708ae8a1d5fa95c5aa98c5d06..6f49643fb9752a45c4dbcd4da08b6548b9124051 100644
--- a/testcases/cli-test/swaplabel/oe_test_swaplabel.sh
+++ b/testcases/cli-test/swaplabel/oe_test_swaplabel.sh
@@ -22,7 +22,15 @@ source "${OET_PATH}"/libs/locallibs/common_lib.sh
 function pre_test() {
     LOG_INFO "Start environmental preparation."
     swap=$(blkid | grep swap | awk -F":" '{print $1}')
-    old_label=$(swaplabel /dev/mapper/openeuler-swap | grep -i label | awk -F ': ' '{print $NF}')
+    if [ -z "$swap" ]; then
+        fallocate -l 1G /swapfile
+        chmod 600 /swapfile
+        mkswap /swapfile
+        swapon /swapfile
+        swap="/swapfile"
+    fi
+
+    old_label=$(swaplabel "${swap}" | grep -i label | awk -F ': ' '{print $NF}')
     LOG_INFO "End of environmental preparation!"
 }