diff --git a/src/views/calendar/components/addCalendar.vue b/src/views/calendar/components/addCalendar.vue
index ea2d28d..429cb16 100644
--- a/src/views/calendar/components/addCalendar.vue
+++ b/src/views/calendar/components/addCalendar.vue
@@ -795,13 +795,16 @@ export default {
             this.form.title =
               (item.type_detail ? item.type_detail.name + " - " : "") +
               item.name;
-            this.form.start_time = item.start_date
-              ? `${item.start_date} 09:00:00`
-              : "";
-            this.form.end_time = item.end_date
-              ? `${item.end_date} 17:00:00`
-              : "";
-            this.form.date = item.start_date;
+            // 仅新增时自动填充开始/截止时间，编辑时保留原值
+            if (this.type === 'add') {
+              this.form.start_time = item.start_date
+                ? `${item.start_date} 09:00:00`
+                : "";
+              this.form.end_time = item.end_date
+                ? `${item.end_date} 17:00:00`
+                : "";
+              this.form.date = item.start_date;
+            }
             this.form.url = item.url;
             this.form.color = item.type_detail?(item.type_detail.color?item.type_detail.color:''):''
           }
@@ -815,9 +818,12 @@ export default {
         this.course_content_options.map((item) => {
           if (item.id === e) {
             this.form.title = item.theme;
-            this.form.start_time = item.start_date;
-            this.form.end_time = item.end_date;
-            this.form.date = item.start_date;
+            // 仅新增时自动填充开始/截止时间，编辑时保留原值
+            if (this.type === 'add') {
+              this.form.start_time = item.start_date;
+              this.form.end_time = item.end_date;
+              this.form.date = item.start_date;
+            }
           }
         });
         this.updateDaysFromDates();