diff --git a/web/src/pages/nodes/BatchCommandTable.tsx b/web/src/pages/nodes/BatchCommandTable.tsx
new file mode 100644
index 0000000..d6701ed
--- /dev/null
+++ b/web/src/pages/nodes/BatchCommandTable.tsx
@@ -0,0 +1,108 @@
+import React, { useEffect, useState } from 'react'
+import { Table, Button, Space, Message, Typography } from '@arco-design/web-react'
+import { IconCopy, IconDownload } from '@arco-design/web-react/icon'
+
+const { Text } = Typography
+
+export interface BatchCommandRow {
+  nodeId: number
+  nodeName: string
+  command: string
+  expiresAt: string
+}
+
+interface Props {
+  rows: BatchCommandRow[]
+}
+
+export function BatchCommandTable({ rows }: Props) {
+  const [remaining, setRemaining] = useState<Record<number, number>>({})
+
+  useEffect(() => {
+    const tick = () => {
+      const next: Record<number, number> = {}
+      rows.forEach((r) => {
+        const exp = new Date(r.expiresAt).getTime()
+        next[r.nodeId] = Math.max(0, Math.floor((exp - Date.now()) / 1000))
+      })
+      setRemaining(next)
+    }
+    tick()
+    const id = setInterval(tick, 1000)
+    return () => clearInterval(id)
+  }, [rows])
+
+  const copy = async (s: string) => {
+    await navigator.clipboard.writeText(s)
+    Message.success('已复制')
+  }
+
+  const exportAll = () => {
+    const content = [
+      '#!/bin/sh',
+      '# BackupX Agent 批量部署脚本',
+      '# 使用方法：在目标机逐个执行下面对应节点命令',
+      '',
+      ...rows.map((r) => `# --- ${r.nodeName} ---\n${r.command}`),
+    ].join('\n\n')
+    const blob = new Blob([content], { type: 'text/x-shellscript' })
+    const url = URL.createObjectURL(blob)
+    const a = document.createElement('a')
+    a.href = url
+    a.download = `backupx-batch-install-${new Date().toISOString().slice(0, 10)}.sh`
+    a.click()
+    URL.revokeObjectURL(url)
+  }
+
+  return (
+    <div>
+      <Table
+        size="small"
+        pagination={false}
+        columns={[
+          { title: '节点', dataIndex: 'nodeName', width: 140 },
+          {
+            title: '安装命令',
+            dataIndex: 'command',
+            render: (cmd: unknown, row: BatchCommandRow) => {
+              const left = remaining[row.nodeId] ?? 0
+              return (
+                <Text style={{
+                  fontFamily: 'monospace', fontSize: 12, wordBreak: 'break-all',
+                  opacity: left === 0 ? 0.4 : 1,
+                }}>
+                  {cmd as string}
+                </Text>
+              )
+            },
+          },
+          {
+            title: '剩余', dataIndex: 'expiresAt', width: 90,
+            render: (_v: unknown, row: BatchCommandRow) => {
+              const left = remaining[row.nodeId] ?? 0
+              return (
+                <Text type={left === 0 ? 'secondary' : 'primary'} style={{ fontSize: 12 }}>
+                  {left === 0 ? '已过期' : `${Math.floor(left / 60)}:${String(left % 60).padStart(2, '0')}`}
+                </Text>
+              )
+            },
+          },
+          {
+            title: '操作', width: 80,
+            render: (_v: unknown, row: BatchCommandRow) => (
+              <Button size="small" icon={<IconCopy />} onClick={() => copy(row.command)}
+                disabled={(remaining[row.nodeId] ?? 0) === 0}>复制</Button>
+            ),
+          },
+        ]}
+        data={rows}
+        rowKey="nodeId"
+      />
+      <div style={{ marginTop: 12, textAlign: 'right' }}>
+        <Space>
+          <Button icon={<IconDownload />} onClick={exportAll}>导出 .sh</Button>
+        </Space>
+      </div>
+    </div>
+  )
+}
diff --git a/web/src/pages/nodes/wizard/Step3CommandPreview.tsx b/web/src/pages/nodes/wizard/Step3CommandPreview.tsx
new file mode 100644
index 0000000..22f91bd
--- /dev/null
+++ b/web/src/pages/nodes/wizard/Step3CommandPreview.tsx
@@ -0,0 +1,111 @@
+import React, { useEffect, useState } from 'react'
+import { Typography, Button, Space, Collapse, Spin, Message, Tag } from '@arco-design/web-react'
+import { IconCopy, IconRefresh } from '@arco-design/web-react/icon'
+import { fetchScriptPreview } from '../../../services/nodes'
+import type { InstallTokenResult, InstallMode } from '../../../types/nodes'
+
+const { Text } = Typography
+
+interface Props {
+  nodeId: number
+  nodeName: string
+  token: InstallTokenResult
+  mode: InstallMode
+  previewParams: { mode: string; arch: string; agentVersion: string; downloadSrc: string }
+  onRegenerate: () => void
+}
+
+export function Step3CommandPreview({ nodeId, nodeName, token, mode, previewParams, onRegenerate }: Props) {
+  const [remaining, setRemaining] = useState(0)
+  const [preview, setPreview] = useState<string>('')
+  const [loadingPreview, setLoadingPreview] = useState(false)
+
+  useEffect(() => {
+    const expires = new Date(token.expiresAt).getTime()
+    const tick = () => setRemaining(Math.max(0, Math.floor((expires - Date.now()) / 1000)))
+    tick()
+    const id = setInterval(tick, 1000)
+    return () => clearInterval(id)
+  }, [token.expiresAt])
+
+  const expired = remaining === 0
+  const command = `curl -fsSL ${token.url} | sudo sh`
+  const dockerComposeCmd = mode === 'docker' && token.composeUrl
+    ? `curl -fsSL ${token.composeUrl} -o docker-compose.yml && docker-compose up -d`
+    : null
+
+  const copy = async (s: string) => {
+    await navigator.clipboard.writeText(s)
+    Message.success('已复制')
+  }
+
+  const loadPreview = async () => {
+    setLoadingPreview(true)
+    try {
+      const text = await fetchScriptPreview(nodeId, previewParams)
+      setPreview(text)
+    } catch {
+      Message.error('预览加载失败')
+    } finally {
+      setLoadingPreview(false)
+    }
+  }
+
+  return (
+    <div>
+      <Space style={{ marginBottom: 12 }}>
+        <Text bold>节点：</Text>
+        <Tag>{nodeName}</Tag>
+        <Tag color={expired ? 'gray' : 'green'}>
+          {expired ? '已过期' : `有效期 ${Math.floor(remaining / 60)}:${String(remaining % 60).padStart(2, '0')}`}
+        </Tag>
+      </Space>
+
+      <div style={{ background: 'var(--color-fill-2)', padding: '12px 14px', borderRadius: 6, marginBottom: 12 }}>
+        <Text style={{
+          fontFamily: 'monospace', fontSize: 13, wordBreak: 'break-all',
+          opacity: expired ? 0.4 : 1, userSelect: 'all',
+        }}>
+          {command}
+        </Text>
+        <div style={{ marginTop: 8 }}>
+          <Space>
+            <Button size="small" icon={<IconCopy />} disabled={expired} onClick={() => copy(command)}>复制</Button>
+            {expired && <Button size="small" type="primary" icon={<IconRefresh />} onClick={onRegenerate}>重新生成</Button>}
+          </Space>
+        </div>
+      </div>
+
+      {dockerComposeCmd && (
+        <div style={{ background: 'var(--color-fill-2)', padding: '12px 14px', borderRadius: 6, marginBottom: 12 }}>
+          <Text type="secondary" style={{ fontSize: 12, display: 'block', marginBottom: 4 }}>
+            或使用 docker-compose：
+          </Text>
+          <Text style={{ fontFamily: 'monospace', fontSize: 13, wordBreak: 'break-all', opacity: expired ? 0.4 : 1 }}>
+            {dockerComposeCmd}
+          </Text>
+          <div style={{ marginTop: 8 }}>
+            <Button size="small" icon={<IconCopy />} disabled={expired} onClick={() => copy(dockerComposeCmd)}>复制</Button>
+          </div>
+        </div>
+      )}
+
+      <Text type="secondary" style={{ fontSize: 12, display: 'block', marginBottom: 8 }}>
+        命令仅显示一次，复制后请尽快在目标机执行。token 一经消费立即作废。
+      </Text>
+
+      <Collapse bordered={false} onChange={(_key, keys) => {
+        if (keys.includes('preview') && !preview) loadPreview()
+      }}>
+        <Collapse.Item name="preview" header="展开脚本预览">
+          {loadingPreview ? <Spin /> : (
+            <pre style={{
+              background: 'var(--color-fill-2)', padding: 12, borderRadius: 4,
+              fontSize: 12, maxHeight: 400, overflow: 'auto', whiteSpace: 'pre-wrap',
+            }}>{preview}</pre>
+          )}
+        </Collapse.Item>
+      </Collapse>
+    </div>
+  )
+}