diff --git a/app/Tasks/AiTaskAnalyzeTask.php b/app/Tasks/AiTaskAnalyzeTask.php
new file mode 100644
index 000000000..e72f03235
--- /dev/null
+++ b/app/Tasks/AiTaskAnalyzeTask.php
@@ -0,0 +1,123 @@
+<?php
+
+namespace App\Tasks;
+
+use App\Models\ProjectTask;
+use App\Models\ProjectTaskAiEvent;
+use App\Module\AiTaskSuggestion;
+use App\Module\Base;
+
+/**
+ * AI 任务分析异步任务
+ * 处理单个任务的所有 AI 事件
+ */
+class AiTaskAnalyzeTask extends AbstractTask
+{
+    protected int $taskId;
+
+    public function __construct(int $taskId)
+    {
+        parent::__construct();
+        $this->taskId = $taskId;
+    }
+
+    public function start()
+    {
+        $task = ProjectTask::with('project')->find($this->taskId);
+        if (!$task || $task->deleted_at || !$task->dialog_id) {
+            return;
+        }
+
+        // 获取该任务的所有待处理事件
+        $events = ProjectTaskAiEvent::where('task_id', $this->taskId)
+            ->whereIn('status', [
+                ProjectTaskAiEvent::STATUS_PENDING,
+                ProjectTaskAiEvent::STATUS_FAILED,
+            ])
+            ->get()
+            ->keyBy('event_type');
+
+        $suggestions = [];
+
+        // 遍历所有事件类型
+        foreach (ProjectTaskAiEvent::getEventTypes() as $eventType) {
+            $event = $events->get($eventType);
+
+            // 如果没有记录，跳过
+            if (!$event) {
+                continue;
+            }
+
+            // 如果是失败状态但不能重试，跳过
+            if ($event->status === ProjectTaskAiEvent::STATUS_FAILED && !$event->canRetry()) {
+                continue;
+            }
+
+            // 标记为处理中
+            $event->markProcessing();
+
+            try {
+                // 检查是否满足执行条件
+                if (!AiTaskSuggestion::shouldExecute($task, $eventType)) {
+                    $event->markSkipped('不满足执行条件');
+                    continue;
+                }
+
+                // 执行对应的分析
+                $result = $this->executeAnalysis($task, $eventType);
+
+                if ($result === null) {
+                    $event->markSkipped('未生成有效建议');
+                    continue;
+                }
+
+                // 收集建议
+                $suggestions[] = $result;
+                $event->markCompleted($result);
+
+            } catch (\Exception $e) {
+                $event->markFailed($e->getMessage());
+                \Log::error("AiTaskAnalyzeTask error: task={$this->taskId}, type={$eventType}, error={$e->getMessage()}");
+            }
+        }
+
+        // 如果有建议，发送消息
+        if (!empty($suggestions)) {
+            $msgId = AiTaskSuggestion::sendSuggestionMessage($task, $suggestions);
+
+            // 更新所有事件的 msg_id
+            if ($msgId) {
+                ProjectTaskAiEvent::where('task_id', $this->taskId)
+                    ->where('status', ProjectTaskAiEvent::STATUS_COMPLETED)
+                    ->update(['msg_id' => $msgId]);
+            }
+        }
+    }
+
+    /**
+     * 执行具体的分析
+     */
+    private function executeAnalysis(ProjectTask $task, string $eventType): ?array
+    {
+        switch ($eventType) {
+            case ProjectTaskAiEvent::EVENT_DESCRIPTION:
+                return AiTaskSuggestion::generateDescription($task);
+
+            case ProjectTaskAiEvent::EVENT_SUBTASKS:
+                return AiTaskSuggestion::generateSubtasks($task);
+
+            case ProjectTaskAiEvent::EVENT_ASSIGNEE:
+                return AiTaskSuggestion::generateAssignee($task);
+
+            case ProjectTaskAiEvent::EVENT_SIMILAR:
+                return AiTaskSuggestion::findSimilarTasks($task);
+
+            default:
+                return null;
+        }
+    }
+
+    public function end()
+    {
+    }
+}