diff --git a/app/Models/ProjectTask.php b/app/Models/ProjectTask.php
index 273ba2da5..fdc7a39e0 100644
--- a/app/Models/ProjectTask.php
+++ b/app/Models/ProjectTask.php
@@ -769,6 +769,7 @@ class ProjectTask extends AbstractModel
             if (Arr::exists($data, 'times')) {
                 $oldAt = [Carbon::parse($this->start_at), Carbon::parse($this->end_at)];
                 $oldStringAt = $this->start_at ? ($oldAt[0]->toDateTimeString() . '~' . $oldAt[1]->toDateTimeString()) : '';
+                $clearSubTaskTime = false;
                 $this->start_at = null;
                 $this->end_at = null;
                 $times = $data['times'];
@@ -802,6 +803,7 @@ class ProjectTask extends AbstractModel
                         // 清空子任务时间（子任务时间等于主任务时间）
                         $this->start_at = $mainTask->start_at;
                         $this->end_at = $mainTask->end_at;
+                        $clearSubTaskTime = true;
                     }
                 }
                 if ($this->parent_id == 0) {
@@ -832,7 +834,7 @@ class ProjectTask extends AbstractModel
                         }
                     });
                 }
-                $newStringAt = $this->start_at ? ($this->start_at->toDateTimeString() . '~' . $this->end_at->toDateTimeString()) : '';
+                $newStringAt = $this->start_at && !$clearSubTaskTime ? ($this->start_at->toDateTimeString() . '~' . $this->end_at->toDateTimeString()) : '';
                 $newDesc = $desc ? "（备注：{$desc}）" : "";
                 $this->addLog("修改{任务}时间" . $newDesc, [
                     'change' => [$oldStringAt, $newStringAt]
@@ -1426,7 +1428,11 @@ class ProjectTask extends AbstractModel
             'detail' => $detail,
         ];
         if ($this->parent_id) {
-            $record['subtitle'] = $this->name;
+            $record['subtask'] = [
+                'id' => $this->id,
+                'parent_id' => $this->parent_id,
+                'name' => $this->name,
+            ];
         }
         if ($record) {
             $array['record'] = $record;
diff --git a/resources/assets/js/pages/manage/components/ProjectLog.vue b/resources/assets/js/pages/manage/components/ProjectLog.vue
index fd0d94f01..f43ca6b79 100644
--- a/resources/assets/js/pages/manage/components/ProjectLog.vue
+++ b/resources/assets/js/pages/manage/components/ProjectLog.vue
@@ -25,6 +25,10 @@
                                 <div v-if="log.project_task" class="log-task">
                                     <em @click="openTask(log.project_task)">{{$L('关联任务')}}: {{log.project_task.name}}</em>
                                 </div>
+                                <div v-if="hasRecordSubtask(log.record)" class="log-task">
+                                    <em @click="posSubTask(log.record.subtask)">{{$L('关联子任务')}}: {{log.record.subtask.name}}</em>
+                                </div>
+                                <div class="log-bottom"></div>
                             </template>
                         </TimelineItem>
                     </Timeline>
@@ -159,6 +163,15 @@ export default {
             this.getLists();
         },
 
+        /**
+         * 是否有子任务
+         * @param record
+         * @returns {boolean}
+         */
+        hasRecordSubtask(record) {
+            return $A.isJson(record) && $A.isJson(record.subtask)
+        },
+
         /**
          * 日志详情
          * @param h
@@ -305,6 +318,28 @@ export default {
 
         openTask(task) {
             this.$store.dispatch("openTask", task)
+        },
+
+        posSubTask(subtask) {
+            const el = this.$parent.$refs[`subTask_${subtask.id}`]
+            if (el && el[0]) {
+                const $e = el[0].$el
+                if ($e.classList.contains("common-shake")) {
+                    return
+                }
+                $A.scrollIntoViewIfNeeded($e)
+                requestAnimationFrame(_ => {
+                    $e.classList.add("common-shake")
+                    setTimeout(_ => {
+                        $e.classList.remove("common-shake")
+                    }, 600)
+                })
+            } else {
+                if (subtask.parent_id == this.taskId) {
+                    return
+                }
+                this.$store.dispatch("openTask", subtask)
+            }
         }
     }
 }
diff --git a/resources/assets/sass/pages/components/project-log.scss b/resources/assets/sass/pages/components/project-log.scss
index f2d43b5a3..ecc44e0f7 100644
--- a/resources/assets/sass/pages/components/project-log.scss
+++ b/resources/assets/sass/pages/components/project-log.scss
@@ -126,6 +126,11 @@
                         }
                     }
 
+                    .subtitle-value {
+                        padding-left: 12px;
+                        color: rgba(0, 0, 0, .36);
+                    }
+
                     .detail-user {
                         display: inline-block;
                         vertical-align: top;
@@ -157,16 +162,9 @@
             }
 
             .log-task {
+                display: flex;
                 margin-left: 12px;
-                margin-bottom: 6px;
-                opacity: 0.6;
-                cursor: pointer;
-                &:hover {
-                    opacity: 1;
-                    > em {
-                        color: $primary-color;
-                    }
-                }
+                padding-bottom: 4px;
                 > em {
                     display: inline-block;
                     font-style: normal;
@@ -179,8 +177,18 @@
                     overflow: hidden;
                     text-overflow: ellipsis;
                     white-space: nowrap;
+                    cursor: pointer;
+                    opacity: 0.6;
+                    &:hover {
+                        opacity: 1;
+                        color: $primary-color;
+                    }
                 }
             }
+            .log-bottom {
+                width: 100%;
+                height: 6px;
+            }
         }
     }
 }