diff --git a/src/Jiaowu.Api/Controllers/SchedulesController.cs b/src/Jiaowu.Api/Controllers/SchedulesController.cs
index 2ed149e..07a361d 100644
--- a/src/Jiaowu.Api/Controllers/SchedulesController.cs
+++ b/src/Jiaowu.Api/Controllers/SchedulesController.cs
@@ -354,6 +354,25 @@ public sealed class SchedulesController(
             ToResponse(job));
     }
 
+    [HttpGet("plans/{planId:guid}/preflight")]
+    public async Task<ActionResult> Preflight(Guid planId, CancellationToken cancellationToken)
+    {
+        var plan = await DraftPlanAsync(planId, cancellationToken);
+        if (plan is null) return NotFound();
+        var tasks = await db.TeachingTasks.AsNoTracking()
+            .Where(x => x.AcademicTermId == plan.AcademicTermId &&
+                        x.Status == TeachingTaskStatus.Published &&
+                        x.SchedulingMode == TeachingTaskSchedulingMode.Standard)
+            .Select(x => new { x.Id, x.Name, CourseName = x.Course!.Name })
+            .ToListAsync(cancellationToken);
+        var scheduled = await db.ScheduleEntries.AsNoTracking()
+            .Where(x => x.SchedulePlanId == planId)
+            .Select(x => x.TeachingTaskId).Distinct().ToListAsync(cancellationToken);
+        var missing = tasks.Where(x => !scheduled.Contains(x.Id))
+            .Select(x => $"《{x.CourseName}》{x.Name}").Take(20).ToList();
+        return Ok(new { totalTasks = tasks.Count, scheduledTasks = scheduled.Count, unscheduledTasks = missing.Count, messages = missing });
+    }
+
     [HttpGet("auto-schedule-jobs/{jobId:guid}")]
     public async Task<ActionResult<AutomaticScheduleJobResponse>>
         GetAutomaticScheduleJob(
diff --git a/web/src/views/SchedulesView.vue b/web/src/views/SchedulesView.vue
index 9d18275..c66f135 100644
--- a/web/src/views/SchedulesView.vue
+++ b/web/src/views/SchedulesView.vue
@@ -807,6 +807,16 @@ function changeEntryKind() {
   }
 }
 
+async function preflightSchedule() {
+  try {
+    const { data } = await http.get(`/schedules/plans/${selected.value.id}/preflight`)
+    const message = data.unscheduledTasks
+      ? `尚有 ${data.unscheduledTasks} 个教学班未安排：\n${data.messages.join('\n')}`
+      : '当前草稿已覆盖全部需要排课的教学班。'
+    await ElMessageBox.alert(message, `排课前检查 · 已覆盖 ${data.scheduledTasks}/${data.totalTasks}`, { confirmButtonText: '知道了' })
+  } catch (error) { ElMessage.error(apiErrorMessage(error)) }
+}
+
 async function saveEntry() {
   if (!entryForm.teachingTaskId ||
       ((entryForm.kind === 'Experiment' ||
@@ -937,6 +947,13 @@ onBeforeUnmount(() => {
           >
             复制调整
           </el-button>
+          <el-button
+            v-if="isDraft"
+            :disabled="scheduleJobLoading"
+            @click="preflightSchedule"
+          >
+            排课前检查
+          </el-button>
           <el-button
             v-if="isDraft"
             type="warning"