diff --git a/flink-platform-alert/src/main/java/com/flink/platform/alert/AlertSendingService.java b/flink-platform-alert/src/main/java/com/flink/platform/alert/AlertSendingService.java
index 532c7be8..79b20c84 100644
--- a/flink-platform-alert/src/main/java/com/flink/platform/alert/AlertSendingService.java
+++ b/flink-platform-alert/src/main/java/com/flink/platform/alert/AlertSendingService.java
@@ -14,7 +14,7 @@
 import java.util.List;
 
 import static com.flink.platform.common.constants.Constant.EMPTY;
-import static com.flink.platform.common.enums.ExecutionStatus.FAILURE;
+import static com.flink.platform.common.enums.ExecutionStatus.ERROR;
 
 /** Alert sending service. */
 @Slf4j
@@ -45,7 +45,7 @@ public void sendAlerts(JobFlowRun jobFlowRun, String alertMsg) {
 
     public void sendErrAlerts(JobFlow jobFlow, String alertMag) {
         JobFlowRun jobFlowRun = jobFlowService.copyToJobFlowRun(jobFlow);
-        jobFlowRun.setStatus(FAILURE);
+        jobFlowRun.setStatus(ERROR);
         sendAlerts(jobFlowRun, alertMag);
     }
 }
diff --git a/flink-platform-dao/src/main/java/com/flink/platform/dao/service/JobFlowService.java b/flink-platform-dao/src/main/java/com/flink/platform/dao/service/JobFlowService.java
index 62b68280..b6a8b3ca 100644
--- a/flink-platform-dao/src/main/java/com/flink/platform/dao/service/JobFlowService.java
+++ b/flink-platform-dao/src/main/java/com/flink/platform/dao/service/JobFlowService.java
@@ -13,6 +13,7 @@
 import com.flink.platform.dao.entity.JobInfo;
 import com.flink.platform.dao.entity.JobRunInfo;
 import com.flink.platform.dao.mapper.JobFlowMapper;
+import lombok.RequiredArgsConstructor;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -21,6 +22,7 @@
 import java.util.List;
 
 import static com.flink.platform.common.enums.JobFlowStatus.OFFLINE;
+import static com.flink.platform.common.enums.JobFlowStatus.ONLINE;
 import static com.flink.platform.common.enums.JobFlowType.JOB_LIST;
 import static java.lang.String.format;
 import static java.util.stream.Collectors.toList;
@@ -29,16 +31,14 @@
 /** job config info. */
 @Service
 @DS("master_platform")
+@RequiredArgsConstructor(onConstructor_ = @Autowired)
 public class JobFlowService extends ServiceImpl<JobFlowMapper, JobFlow> {
 
-    @Autowired
-    private JobInfoService jobInfoService;
+    private final JobInfoService jobInfoService;
 
-    @Autowired
-    private JobFlowRunService jobFlowRunService;
+    private final JobFlowRunService jobFlowRunService;
 
-    @Autowired
-    private JobRunInfoService jobRunInfoService;
+    private final JobRunInfoService jobRunInfoService;
 
     @Transactional
     public JobFlow cloneJobFlow(long flowId) {
@@ -165,4 +165,12 @@ public JobFlowRun copyToJobFlowRun(JobFlow jobFlow) {
         jobFlowRun.setAlerts(jobFlow.getAlerts());
         return jobFlowRun;
     }
+
+    public List<JobFlow> getUnscheduledJobFlows() {
+        return list(new QueryWrapper<JobFlow>()
+                .lambda()
+                .eq(JobFlow::getStatus, ONLINE)
+                .isNotNull(JobFlow::getCronExpr)
+                .ne(JobFlow::getCronExpr, ""));
+    }
 }
diff --git a/flink-platform-monitor/src/main/java/com/flink/platform/monitor/UnscheduledJobFlowChecker.java b/flink-platform-monitor/src/main/java/com/flink/platform/monitor/UnscheduledJobFlowChecker.java
new file mode 100644
index 00000000..a7f7b011
--- /dev/null
+++ b/flink-platform-monitor/src/main/java/com/flink/platform/monitor/UnscheduledJobFlowChecker.java
@@ -0,0 +1,43 @@
+package com.flink.platform.monitor;
+
+import com.flink.platform.alert.AlertSendingService;
+import com.flink.platform.dao.entity.Worker;
+import com.flink.platform.dao.service.JobFlowService;
+import com.flink.platform.dao.service.WorkerService;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+import static com.flink.platform.common.enums.WorkerStatus.LEADER;
+
+@Slf4j
+@Component
+@RequiredArgsConstructor(onConstructor_ = @Autowired)
+public class UnscheduledJobFlowChecker {
+
+    private static final String ALERT_TEMPLATE =
+            "\\nWorkflow's crontab is set but not scheduled: \\nName: %s, Status: %s.";
+
+    private final WorkerService workerService;
+
+    private final JobFlowService jobFlowService;
+
+    private final AlertSendingService alertSendingService;
+
+    @Scheduled(initialDelay = 2 * 60 * 1000, fixedDelay = 60 * 60 * 1000)
+    public void checkUnscheduledWorkflow() {
+        Worker worker = workerService.getCurrentWorker();
+        if (worker == null || !LEADER.equals(worker.getRole())) {
+            log.info("Current worker is not leader, skip checkUnscheduledWorkflow.");
+            return;
+        }
+
+        jobFlowService.getUnscheduledJobFlows().forEach(jobFlow -> {
+            String content = String.format(
+                    ALERT_TEMPLATE, jobFlow.getName(), jobFlow.getStatus().name());
+            alertSendingService.sendErrAlerts(jobFlow, content);
+        });
+    }
+}