diff --git a/src/main/java/net/geedge/asw/module/job/service/impl/JobCfgServiceImpl.java b/src/main/java/net/geedge/asw/module/job/service/impl/JobCfgServiceImpl.java
index 6031fcc..ee3d36d 100644
--- a/src/main/java/net/geedge/asw/module/job/service/impl/JobCfgServiceImpl.java
+++ b/src/main/java/net/geedge/asw/module/job/service/impl/JobCfgServiceImpl.java
@@ -121,7 +121,7 @@ public class JobCfgServiceImpl extends ServiceImpl<JobCfgDao, JobCfgEntity> impl
         if (T.StrUtil.equals(cfg.getType(), "cron") && cfg.getCron() == null) {
             throw new ASWException(RCode.JOB_CFG_CRON_CANNOT_EMPTY);
         }
-        if (cfg.getCron() != null && !CronExpression.isValidExpression(cfg.getCron())) {
+        if (T.StrUtil.isNotEmpty(cfg.getCron()) && !CronExpression.isValidExpression(cfg.getCron())) {
             throw new ASWException(RCode.JOB_CFG_CRON_ERROR);
         }