diff --git a/app/Models/ProjectTask.php b/app/Models/ProjectTask.php
index c063872d..1145a8dc 100644
--- a/app/Models/ProjectTask.php
+++ b/app/Models/ProjectTask.php
@@ -725,7 +725,7 @@ class ProjectTask extends AbstractModel
                         }
                     });
                 }
-                $newStringAt = $this->start_at ? ($oldAt[0]->toDateTimeString() . '~' . $oldAt[1]->toDateTimeString()) : '';
+                $newStringAt = $this->start_at ? ($this->start_at->toDateTimeString() . '~' . $this->end_at->toDateTimeString()) : '';
                 $this->addLog("修改{任务}时间", [
                     'change' => [$oldStringAt, $newStringAt]
                 ]);
diff --git a/resources/assets/js/pages/manage/components/ProjectLog.vue b/resources/assets/js/pages/manage/components/ProjectLog.vue
index f36d151d..8189a9f6 100644
--- a/resources/assets/js/pages/manage/components/ProjectLog.vue
+++ b/resources/assets/js/pages/manage/components/ProjectLog.vue
@@ -172,9 +172,11 @@ export default {
                     let [before, now] = record.change
                     vNode.push(h('span', ': '))
                     if (before && before != now) {
-                        vNode.push(h('span', `${before || '-'} => ${now || '-'}`))
+                        vNode.push(h('span', {class:'change-value'}, `${before || '-'}`))
+                        vNode.push(h('span', ' => '))
+                        vNode.push(h('span', {class:'change-value'}, `${now || '-'}`))
                     } else {
-                        vNode.push(h('span', now || '-'))
+                        vNode.push(h('span', {class:'change-value'}, now || '-'))
                     }
                 }
                 if (record.userid) {
diff --git a/resources/assets/sass/pages/components/project-log.scss b/resources/assets/sass/pages/components/project-log.scss
index 2a6bec3f..8ef76735 100644
--- a/resources/assets/sass/pages/components/project-log.scss
+++ b/resources/assets/sass/pages/components/project-log.scss
@@ -120,6 +120,12 @@
                     display: inline-block;
                     color: rgba(0, 0, 0, .72);
 
+                    .change-value {
+                        &:hover {
+                            border-bottom: 1px dotted rgba(0, 0, 0, .3);
+                        }
+                    }
+
                     .detail-user {
                         display: inline-block;
                         vertical-align: top;