diff --git a/apps/desktop/src-tauri/src/business/services/video_classification_queue.rs b/apps/desktop/src-tauri/src/business/services/video_classification_queue.rs
index aca5034..ea9f031 100644
--- a/apps/desktop/src-tauri/src/business/services/video_classification_queue.rs
+++ b/apps/desktop/src-tauri/src/business/services/video_classification_queue.rs
@@ -85,6 +85,18 @@ impl VideoClassificationQueue {
         *status = QueueStatus::Running;
         drop(status);
 
+        // 修复数据库中的日期格式问题
+        match self.service.fix_date_formats().await {
+            Ok(fixed_count) => {
+                if fixed_count > 0 {
+                    println!("🔧 队列启动时修复了 {} 个任务的日期格式", fixed_count);
+                }
+            }
+            Err(e) => {
+                println!("⚠️ 修复日期格式时出错: {}", e);
+            }
+        }
+
         // 恢复卡住的任务状态
         match self.service.recover_stuck_tasks().await {
             Ok(recovered_count) => {
diff --git a/apps/desktop/src-tauri/src/business/services/video_classification_service.rs b/apps/desktop/src-tauri/src/business/services/video_classification_service.rs
index 97d3e4d..3a80220 100644
--- a/apps/desktop/src-tauri/src/business/services/video_classification_service.rs
+++ b/apps/desktop/src-tauri/src/business/services/video_classification_service.rs
@@ -323,6 +323,11 @@ impl VideoClassificationService {
         self.video_repo.recover_stuck_tasks().await
     }
 
+    /// 修复数据库中的日期格式问题
+    pub async fn fix_date_formats(&self) -> Result<usize> {
+        self.video_repo.fix_date_formats().await
+    }
+
     /// 重试失败的任务
     pub async fn retry_failed_task(&self, _task_id: &str) -> Result<()> {
         // 这里需要实现重试逻辑
diff --git a/apps/desktop/src-tauri/src/data/repositories/video_classification_repository.rs b/apps/desktop/src-tauri/src/data/repositories/video_classification_repository.rs
index 407d6ab..ff395a7 100644
--- a/apps/desktop/src-tauri/src/data/repositories/video_classification_repository.rs
+++ b/apps/desktop/src-tauri/src/data/repositories/video_classification_repository.rs
@@ -346,8 +346,24 @@ impl VideoClassificationRepository {
                 error_message: row.get(11)?,
                 started_at: row.get::<_, Option<String>>(12)?.and_then(|s| chrono::DateTime::parse_from_rfc3339(&s).ok()).map(|dt| dt.with_timezone(&Utc)),
                 completed_at: row.get::<_, Option<String>>(13)?.and_then(|s| chrono::DateTime::parse_from_rfc3339(&s).ok()).map(|dt| dt.with_timezone(&Utc)),
-                created_at: chrono::DateTime::parse_from_rfc3339(&row.get::<_, String>(14)?).map_err(|_e| rusqlite::Error::InvalidColumnType(14, "created_at".to_string(), rusqlite::types::Type::Text))?.with_timezone(&Utc),
-                updated_at: chrono::DateTime::parse_from_rfc3339(&row.get::<_, String>(15)?).map_err(|_e| rusqlite::Error::InvalidColumnType(15, "updated_at".to_string(), rusqlite::types::Type::Text))?.with_timezone(&Utc),
+                created_at: {
+                    let created_at_str: String = row.get(14)?;
+                    chrono::DateTime::parse_from_rfc3339(&created_at_str)
+                        .map_err(|e| {
+                            println!("❌ 解析created_at失败: '{}', 错误: {}", created_at_str, e);
+                            rusqlite::Error::InvalidColumnType(14, "created_at".to_string(), rusqlite::types::Type::Text)
+                        })?
+                        .with_timezone(&Utc)
+                },
+                updated_at: {
+                    let updated_at_str: String = row.get(15)?;
+                    chrono::DateTime::parse_from_rfc3339(&updated_at_str)
+                        .map_err(|e| {
+                            println!("❌ 解析updated_at失败: '{}', 错误: {}", updated_at_str, e);
+                            rusqlite::Error::InvalidColumnType(15, "updated_at".to_string(), rusqlite::types::Type::Text)
+                        })?
+                        .with_timezone(&Utc)
+                },
             })
         })?;
 
@@ -594,17 +610,80 @@ impl VideoClassificationRepository {
         }
 
         // 重置任务状态
+        let now_rfc3339 = chrono::Utc::now().to_rfc3339();
         let updated = conn.execute(
             "UPDATE video_classification_tasks
-             SET status = ?, started_at = NULL, updated_at = datetime('now')
+             SET status = ?, started_at = NULL, updated_at = ?
              WHERE status = ? OR status = ?",
-            [&pending_json, &uploading_json, &analyzing_json]
+            [&pending_json, &now_rfc3339, &uploading_json, &analyzing_json]
         )?;
 
         println!("✅ 已恢复 {} 个任务状态为Pending", updated);
         Ok(updated)
     }
 
+    /// 修复数据库中的日期格式问题
+    /// 将SQLite格式的日期转换为RFC3339格式
+    pub async fn fix_date_formats(&self) -> Result<usize> {
+        let conn = self.database.get_connection();
+        let conn = conn.lock().unwrap();
+
+        println!("🔧 开始修复数据库中的日期格式...");
+
+        // 查询所有可能有问题的任务
+        let mut stmt = conn.prepare(
+            "SELECT id, created_at, updated_at FROM video_classification_tasks"
+        )?;
+
+        let rows: Vec<(String, String, String)> = stmt.query_map([], |row| {
+            Ok((
+                row.get::<_, String>(0)?,
+                row.get::<_, String>(1)?,
+                row.get::<_, String>(2)?,
+            ))
+        })?.collect::<Result<Vec<_>, _>>()?;
+
+        let mut fixed_count = 0;
+
+        for (id, created_at, updated_at) in rows {
+            let mut needs_update = false;
+            let mut new_created_at = created_at.clone();
+            let mut new_updated_at = updated_at.clone();
+
+            // 检查并修复created_at
+            if chrono::DateTime::parse_from_rfc3339(&created_at).is_err() {
+                // 尝试解析SQLite格式的日期
+                if let Ok(dt) = chrono::NaiveDateTime::parse_from_str(&created_at, "%Y-%m-%d %H:%M:%S") {
+                    new_created_at = dt.and_utc().to_rfc3339();
+                    needs_update = true;
+                    println!("🔧 修复created_at: {} -> {}", created_at, new_created_at);
+                }
+            }
+
+            // 检查并修复updated_at
+            if chrono::DateTime::parse_from_rfc3339(&updated_at).is_err() {
+                // 尝试解析SQLite格式的日期
+                if let Ok(dt) = chrono::NaiveDateTime::parse_from_str(&updated_at, "%Y-%m-%d %H:%M:%S") {
+                    new_updated_at = dt.and_utc().to_rfc3339();
+                    needs_update = true;
+                    println!("🔧 修复updated_at: {} -> {}", updated_at, new_updated_at);
+                }
+            }
+
+            // 更新记录
+            if needs_update {
+                conn.execute(
+                    "UPDATE video_classification_tasks SET created_at = ?, updated_at = ? WHERE id = ?",
+                    [&new_created_at, &new_updated_at, &id]
+                )?;
+                fixed_count += 1;
+            }
+        }
+
+        println!("✅ 已修复 {} 个任务的日期格式", fixed_count);
+        Ok(fixed_count)
+    }
+
     /// 根据ID获取分类任务
     pub async fn get_task_by_id(&self, task_id: &str) -> Result<Option<VideoClassificationTask>> {
         let conn = self.database.get_connection();