diff --git a/src/pages/BackupAdmin.tsx b/src/pages/BackupAdmin.tsx
index 8c1cefa..f6904e3 100644
--- a/src/pages/BackupAdmin.tsx
+++ b/src/pages/BackupAdmin.tsx
@@ -69,7 +69,7 @@ export default function BackupAdmin() {
                 <Button icon={<CloudUploadOutlined />} onClick={() => triggerBackup.mutate('qdrant')} loading={triggerBackup.isPending}>Qdrant Snapshot</Button>
                 <Button icon={<CloudUploadOutlined />} onClick={() => triggerBackup.mutate('files')} loading={triggerBackup.isPending}>文件备份</Button>
               </Space>
-              <Table dataSource={backups?.items || []} columns={backupColumns} rowKey="id" loading={bLoading} pagination={{ total: backups?.total || 0 }} size="small" scroll={{ x: 1100 }} />
+              <Table dataSource={backups?.items || []} columns={backupColumns} rowKey="id" loading={bLoading} pagination={{ defaultPageSize: 20, total: backups?.total || 0 }} size="small" scroll={{ x: 1100 }} />
             </div>
           ),
         },
@@ -82,7 +82,7 @@ export default function BackupAdmin() {
                 <Button icon={<DeleteOutlined />} onClick={() => triggerCleanup.mutate('api-metrics')} loading={triggerCleanup.isPending}>指标清理</Button>
                 <Button icon={<DeleteOutlined />} onClick={() => triggerCleanup.mutate('task-logs')} loading={triggerCleanup.isPending}>任务日志清理</Button>
               </Space>
-              <Table dataSource={cleanups?.items || []} columns={cleanupColumns} rowKey="id" loading={cLoading} pagination={{ total: cleanups?.total || 0 }} size="small" scroll={{ x: 900 }} />
+              <Table dataSource={cleanups?.items || []} columns={cleanupColumns} rowKey="id" loading={cLoading} pagination={{ defaultPageSize: 20, total: cleanups?.total || 0 }} size="small" scroll={{ x: 900 }} />
             </div>
           ),
         },
diff --git a/src/pages/LearningData.tsx b/src/pages/LearningData.tsx
index e9b0ad3..5e17971 100644
--- a/src/pages/LearningData.tsx
+++ b/src/pages/LearningData.tsx
@@ -91,15 +91,15 @@ export default function LearningData() {
       <Tabs activeKey={tab} onChange={setTab} items={[
         {
           key: 'sessions', label: '学习会话',
-          children: <Table dataSource={sessions?.items || []} columns={sessionColumns} rowKey="id" loading={sLoading} pagination={{ total: sessions?.total || 0 }} size="small" scroll={{ x: 900 }} />,
+          children: <Table dataSource={sessions?.items || []} columns={sessionColumns} rowKey="id" loading={sLoading} pagination={{ defaultPageSize: 20, total: sessions?.total || 0 }} size="small" scroll={{ x: 900 }} />,
         },
         {
           key: 'analysis', label: 'AI 分析结果',
-          children: <Table dataSource={analysis?.items || []} columns={analysisColumns} rowKey="id" loading={aLoading} pagination={{ total: analysis?.total || 0 }} size="small" scroll={{ x: 900 }} />,
+          children: <Table dataSource={analysis?.items || []} columns={analysisColumns} rowKey="id" loading={aLoading} pagination={{ defaultPageSize: 20, total: analysis?.total || 0 }} size="small" scroll={{ x: 900 }} />,
         },
         {
           key: 'ai-usage', label: 'AI 调用日志',
-          children: <Table dataSource={aiUsage?.items || []} columns={aiUsageColumns} rowKey="id" loading={uLoading} pagination={{ total: aiUsage?.total || 0 }} size="small" scroll={{ x: 1000 }} />,
+          children: <Table dataSource={aiUsage?.items || []} columns={aiUsageColumns} rowKey="id" loading={uLoading} pagination={{ defaultPageSize: 20, total: aiUsage?.total || 0 }} size="small" scroll={{ x: 1000 }} />,
         },
       ]} />
     </div>
diff --git a/src/pages/ReportingAdmin.tsx b/src/pages/ReportingAdmin.tsx
index 0840895..56851f7 100644
--- a/src/pages/ReportingAdmin.tsx
+++ b/src/pages/ReportingAdmin.tsx
@@ -66,7 +66,7 @@ export default function ReportingAdmin() {
       </Card>
 
       <Card title="导出任务历史">
-        <Table dataSource={jobs?.items || []} columns={jobColumns} rowKey="id" size="small" pagination={{ total: jobs?.total || 0 }} scroll={{ x: 600 }} />
+        <Table dataSource={jobs?.items || []} columns={jobColumns} rowKey="id" size="small" pagination={{ defaultPageSize: 20, total: jobs?.total || 0 }} scroll={{ x: 600 }} />
       </Card>
     </div>
   )
diff --git a/src/pages/ReviewAdmin.tsx b/src/pages/ReviewAdmin.tsx
index b688713..bd38e35 100644
--- a/src/pages/ReviewAdmin.tsx
+++ b/src/pages/ReviewAdmin.tsx
@@ -79,7 +79,7 @@ export default function ReviewAdmin() {
         columns={columns}
         rowKey="id"
         loading={isLoading}
-        pagination={{ total: data?.total || 0 }}
+        pagination={{ defaultPageSize: 20, total: data?.total || 0 }}
         size="small"
         scroll={{ x: 1100 }}
       />
diff --git a/src/pages/learning/DataPages.tsx b/src/pages/learning/DataPages.tsx
index 969a541..00992f1 100644
--- a/src/pages/learning/DataPages.tsx
+++ b/src/pages/learning/DataPages.tsx
@@ -70,7 +70,7 @@ export function ReadingEventPage() {
         <Button onClick={() => setPage(1)} type="primary">查询</Button>
       </Space>
       <Table rowKey="eventId" columns={columns} dataSource={data?.items || []}
-        loading={isLoading} pagination={{ current: page, total: data?.total || 0, onChange: setPage }} size="small"
+        loading={isLoading} pagination={{ current: page, defaultPageSize: 20, total: data?.total || 0, onChange: setPage }} size="small"
         onRow={(record: any) => ({ onClick: () => setDetailId(record.eventId), style: { cursor: 'pointer' } })} />
 
       <Drawer title="事件详情" open={!!detailId} onClose={() => setDetailId(null)} width={640} loading={detailLoading}>
@@ -144,7 +144,7 @@ export function SessionPage() {
         <Button onClick={() => setPage(1)} type="primary">查询</Button>
       </Space>
       <Table rowKey="id" columns={columns} dataSource={data?.items || []} scroll={{ x: 1200 }}
-        loading={isLoading} pagination={{ current: page, total: data?.total || 0, onChange: setPage }} size="small"
+        loading={isLoading} pagination={{ current: page, defaultPageSize: 20, total: data?.total || 0, onChange: setPage }} size="small"
         onRow={(r: any) => ({ onClick: () => setDetailId(r.id), style: { cursor: 'pointer' } })} />
 
       <Drawer title="会话详情" open={!!detailId} onClose={() => setDetailId(null)} width={680} loading={detailLoading}>
@@ -223,7 +223,7 @@ export function ProgressPage() {
         <Button onClick={() => setPage(1)} type="primary">查询</Button>
       </Space>
       <Table rowKey="id" columns={columns} dataSource={data?.items || []} scroll={{ x: 1000 }}
-        loading={isLoading} pagination={{ current: page, total: data?.total || 0, onChange: setPage }} size="small"
+        loading={isLoading} pagination={{ current: page, defaultPageSize: 20, total: data?.total || 0, onChange: setPage }} size="small"
         onRow={(r: any) => ({ onClick: () => setDetail(r), style: { cursor: 'pointer' } })} />
 
       <Drawer title="进度详情" open={!!detail} onClose={() => setDetail(null)} width={600}>
@@ -291,7 +291,7 @@ export function DailyActivityPage() {
         <Button onClick={() => setPage(1)} type="primary">查询</Button>
       </Space>
       <Table rowKey="id" columns={columns} dataSource={data?.items || []} scroll={{ x: 750 }}
-        loading={isLoading} pagination={{ current: page, total: data?.total || 0, onChange: setPage }} size="small"
+        loading={isLoading} pagination={{ current: page, defaultPageSize: 20, total: data?.total || 0, onChange: setPage }} size="small"
         onRow={(r: any) => ({ onClick: () => setDetail(r), style: { cursor: 'pointer' } })} />
 
       <Drawer title="活动详情" open={!!detail} onClose={() => setDetail(null)} width={520}>
@@ -342,7 +342,7 @@ export function RecordPage() {
         <Button onClick={() => setPage(1)} type="primary">查询</Button>
       </Space>
       <Table rowKey="id" columns={columns} dataSource={data?.items || []} scroll={{ x: 700 }}
-        loading={isLoading} pagination={{ current: page, total: data?.total || 0, onChange: setPage }} size="small"
+        loading={isLoading} pagination={{ current: page, defaultPageSize: 20, total: data?.total || 0, onChange: setPage }} size="small"
         onRow={(r: any) => ({ onClick: () => setDetail(r), style: { cursor: 'pointer' } })} />
 
       <Drawer title="记录详情" open={!!detail} onClose={() => setDetail(null)} width={500}>
@@ -405,15 +405,15 @@ export function AnomalyPage() {
         items={[
           { key: 'failed', label: <span>失败事件 <Tag color="red">{data?.total || 0}</Tag></span>,
             children: <Table rowKey="eventId" columns={columns} dataSource={data?.items || []} loading={isLoading}
-              pagination={{ current: page, total: data?.total || 0, onChange: setPage }} size="small"
+              pagination={{ current: page, defaultPageSize: 20, total: data?.total || 0, onChange: setPage }} size="small"
               onRow={(r: any) => ({ onClick: () => setDetailId(r.eventId), style: { cursor: 'pointer' } })} /> },
           { key: 'warning', label: <span>警告事件 <Tag color="orange">{data?.total || 0}</Tag></span>,
             children: <Table rowKey="eventId" columns={columns} dataSource={data?.items || []} loading={isLoading}
-              pagination={{ current: page, total: data?.total || 0, onChange: setPage }} size="small"
+              pagination={{ current: page, defaultPageSize: 20, total: data?.total || 0, onChange: setPage }} size="small"
               onRow={(r: any) => ({ onClick: () => setDetailId(r.eventId), style: { cursor: 'pointer' } })} /> },
           { key: 'duplicate', label: <span>重复事件 <Tag color="blue">{data?.total || 0}</Tag></span>,
             children: <Table rowKey="eventId" columns={columns} dataSource={data?.items || []} loading={isLoading}
-              pagination={{ current: page, total: data?.total || 0, onChange: setPage }} size="small"
+              pagination={{ current: page, defaultPageSize: 20, total: data?.total || 0, onChange: setPage }} size="small"
               onRow={(r: any) => ({ onClick: () => setDetailId(r.eventId), style: { cursor: 'pointer' } })} /> },
         ]} />