diff --git a/apps/web/lib/workspace-daily-report.test.ts b/apps/web/lib/workspace-daily-report.test.ts
new file mode 100644
index 0000000..ed19733
--- /dev/null
+++ b/apps/web/lib/workspace-daily-report.test.ts
@@ -0,0 +1,123 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import type { TaskWorklog } from './task-worklog';
+import type { WorkItem } from './workspace-engine';
+import { getWorkspaceDailyReport } from './workspace-daily-report';
+
+const workItems: WorkItem[] = [
+  {
+    id: 'task-1',
+    type: 'devTask',
+    title: '实现登录接口',
+    status: 'in_progress',
+    completed: false,
+    productName: 'FTB',
+    projectName: '项目管理',
+    versionName: 'V1.0',
+    versionId: 'version-1',
+    raw: {} as any,
+  },
+  {
+    id: 'task-2',
+    type: 'bug',
+    title: '修复菜单错位',
+    status: 'fixing',
+    completed: false,
+    productName: 'FTB',
+    projectName: '项目管理',
+    versionName: 'V1.0',
+    versionId: 'version-1',
+    raw: {} as any,
+  },
+];
+
+const worklogs: TaskWorklog[] = [
+  {
+    id: 'wl-1',
+    taskId: 'task-1',
+    userId: '张三',
+    date: '2026-06-26',
+    hours: 1.5,
+    workContent: '完成登录接口联调',
+    createdAt: '2026-06-26T02:00:00.000Z',
+  },
+  {
+    id: 'wl-2',
+    taskId: 'task-2',
+    userId: '张三',
+    date: '2026-06-26',
+    hours: 0.5,
+    workContent: '定位菜单错位原因',
+    createdAt: '2026-06-26T03:00:00.000Z',
+  },
+  {
+    id: 'wl-other-user',
+    taskId: 'task-1',
+    userId: '李四',
+    date: '2026-06-26',
+    hours: 8,
+    workContent: '其他人的日报',
+    createdAt: '2026-06-26T04:00:00.000Z',
+  },
+  {
+    id: 'wl-other-date',
+    taskId: 'task-1',
+    userId: '张三',
+    date: '2026-06-25',
+    hours: 8,
+    workContent: '昨天的日报',
+    createdAt: '2026-06-25T04:00:00.000Z',
+  },
+];
+
+test('getWorkspaceDailyReport filters by current user and date', () => {
+  const report = getWorkspaceDailyReport({
+    worklogs,
+    workItems,
+    userId: '张三',
+    date: '2026-06-26',
+  });
+
+  assert.equal(report.totalHours, 2);
+  assert.equal(report.totalCount, 2);
+  assert.deepEqual(report.items.map((item) => item.id), ['wl-2', 'wl-1']);
+});
+
+test('getWorkspaceDailyReport resolves task title and workspace context', () => {
+  const report = getWorkspaceDailyReport({
+    worklogs,
+    workItems,
+    userId: '张三',
+    date: '2026-06-26',
+  });
+
+  assert.equal(report.items[0].taskTitle, '修复菜单错位');
+  assert.equal(report.items[0].productName, 'FTB');
+  assert.equal(report.items[0].projectName, '项目管理');
+  assert.equal(report.items[0].versionName, 'V1.0');
+});
+
+test('getWorkspaceDailyReport keeps logs whose task is no longer visible', () => {
+  const report = getWorkspaceDailyReport({
+    worklogs: [
+      {
+        id: 'wl-missing',
+        taskId: 'deleted-task',
+        userId: '张三',
+        date: '2026-06-26',
+        hours: 0.5,
+        workContent: '处理历史任务',
+        createdAt: '2026-06-26T01:00:00.000Z',
+      },
+    ],
+    workItems: [],
+    userId: '张三',
+    date: '2026-06-26',
+  });
+
+  assert.equal(report.totalHours, 0.5);
+  assert.equal(report.totalCount, 1);
+  assert.equal(report.items[0].taskTitle, '未知任务');
+  assert.equal(report.items[0].workContent, '处理历史任务');
+});
diff --git a/apps/web/lib/workspace-daily-report.ts b/apps/web/lib/workspace-daily-report.ts
new file mode 100644
index 0000000..eb6d343
--- /dev/null
+++ b/apps/web/lib/workspace-daily-report.ts
@@ -0,0 +1,63 @@
+import type { TaskWorklog } from './task-worklog';
+import type { WorkItem } from './workspace-engine';
+
+export interface WorkspaceDailyReportItem {
+  id: string;
+  taskId: string;
+  taskTitle: string;
+  workContent: string;
+  hours: number;
+  createdAt: string;
+  productName?: string;
+  projectName?: string;
+  versionName?: string;
+}
+
+export interface WorkspaceDailyReport {
+  date: string;
+  totalHours: number;
+  totalCount: number;
+  items: WorkspaceDailyReportItem[];
+}
+
+interface GetWorkspaceDailyReportInput {
+  worklogs: TaskWorklog[];
+  workItems: WorkItem[];
+  userId: string;
+  date: string;
+}
+
+export function getWorkspaceDailyReport({
+  worklogs,
+  workItems,
+  userId,
+  date,
+}: GetWorkspaceDailyReportInput): WorkspaceDailyReport {
+  const workItemMap = new Map(workItems.map((item) => [item.id, item]));
+
+  const items = worklogs
+    .filter((log) => log.userId === userId && log.date === date)
+    .sort((a, b) => b.createdAt.localeCompare(a.createdAt))
+    .map((log) => {
+      const item = workItemMap.get(log.taskId);
+
+      return {
+        id: log.id,
+        taskId: log.taskId,
+        taskTitle: item?.title ?? '未知任务',
+        workContent: log.workContent,
+        hours: log.hours,
+        createdAt: log.createdAt,
+        productName: item?.productName,
+        projectName: item?.projectName,
+        versionName: item?.versionName,
+      };
+    });
+
+  return {
+    date,
+    totalHours: items.reduce((sum, item) => sum + item.hours, 0),
+    totalCount: items.length,
+    items,
+  };
+}