diff --git a/src/service/api/project-shared.ts b/src/service/api/project-shared.ts
index b6dc0fa..1ad6a54 100644
--- a/src/service/api/project-shared.ts
+++ b/src/service/api/project-shared.ts
@@ -143,13 +143,15 @@ export type ProjectTaskResponse = Omit<
 
 export type TaskWorklogResponse = Omit<
   Api.Project.TaskWorklog,
-  'id' | 'taskId' | 'userId' | 'difficulty' | 'attachments'
+  'id' | 'taskId' | 'userId' | 'difficulty' | 'attachments' | 'startDate' | 'endDate'
 > & {
   id: StringIdResponse;
   taskId: StringIdResponse;
   userId: StringIdResponse;
   difficulty?: string | null;
   attachments?: AttachmentItemResponse[] | null;
+  startDate?: ProjectLocalDateValue;
+  endDate?: ProjectLocalDateValue;
 };
 
 export interface ProjectMemberResponse {
@@ -353,6 +355,9 @@ export function normalizeTaskWorklog(response: TaskWorklogResponse): Api.Project
     workContent: response.workContent ?? null,
     attachments: normalizeAttachments(response.attachments),
     progressRate: typeof response.progressRate === 'number' ? response.progressRate : 0,
+    // 后端 LocalDate 默认序列化为 [year, month, day] 数组，必须归一为 'YYYY-MM-DD' 字符串供 ElDatePicker 使用
+    startDate: normalizeProjectLocalDate(response.startDate) ?? '',
+    endDate: normalizeProjectLocalDate(response.endDate) ?? '',
     // 历史记录或异常缺失时兜底为字典默认档位 "2"
     difficulty: response.difficulty ?? '2',
     difficultyName: response.difficultyName ?? null