diff --git a/docs-vitepress/guide/basic/start.md b/docs-vitepress/guide/basic/start.md
index ee6b6b37df..0af9f11210 100644
--- a/docs-vitepress/guide/basic/start.md
+++ b/docs-vitepress/guide/basic/start.md
@@ -89,6 +89,7 @@ mpx-cli-service build --targets=wx,ali
 | QQ  | qq      |
 | 头条  | tt      |
 | 浏览器 | web     |
+| 快应用 | qa     |
 | 安卓  | android |
 | iOS | ios     |
 | 鸿蒙  | harmony |
diff --git a/packages/webpack-plugin/lib/template-compiler/compiler.js b/packages/webpack-plugin/lib/template-compiler/compiler.js
index 45a98627c7..27def84b66 100644
--- a/packages/webpack-plugin/lib/template-compiler/compiler.js
+++ b/packages/webpack-plugin/lib/template-compiler/compiler.js
@@ -15,7 +15,7 @@ const { isNonPhrasingTag } = require('../utils/dom-tag-config')
 const setBaseWxml = require('../runtime-render/base-wxml')
 const { parseExp } = require('./parse-exps')
 const shallowStringify = require('../utils/shallow-stringify')
-const { isReact, isWeb } = require('../utils/env')
+const { isReact, isWeb, isNoMode } = require('../utils/env')
 const { capitalToHyphen } = require('../utils/string')
 
 const no = function () {
@@ -120,6 +120,8 @@ const rulesResultMap = new Map()
 let usingComponents = []
 let usingComponentsInfo = {}
 let componentGenerics = {}
+// 跨平台语法检测的配置，在模块加载时初始化一次
+let crossPlatformConfig = null
 
 function updateForScopesMap () {
   forScopesMap = {}
@@ -638,6 +640,8 @@ function parse (template, options) {
   processingTemplate = false
   rulesResultMap.clear()
   componentGenerics = options.componentGenerics || {}
+  // 初始化跨平台语法检测配置（每次解析时只初始化一次）
+  crossPlatformConfig = initCrossPlatformConfig()
 
   usingComponents = Object.keys(options.usingComponentsInfo)
   usingComponentsInfo = options.usingComponentsInfo
@@ -2851,6 +2855,78 @@ function processNoTransAttrs (el) {
   }
 }
 
+function initCrossPlatformConfig () {
+  // 定义平台与前缀的双向映射关系
+  const platformPrefixMap = {
+    wx: 'wx:',
+    ali: 'a:',
+    swan: 's-',
+    qq: 'qq:',
+    tt: 'tt:',
+    dd: 'dd:',
+    jd: 'jd:',
+    qa: 'qa:',
+    web: 'v-'
+  }
+
+  if (isNoMode(mode)) {
+    return null
+  }
+
+  return {
+    currentPrefix: platformPrefixMap[mode] || 'wx:',
+    platformPrefixMap
+  }
+}
+
+// 检测跨平台语法使用情况并给出警告
+function processCrossPlatformSyntaxWarning (el) {
+  // 使用转换后的属性列表进行检查
+  if (!el.attrsList || el.attrsList.length === 0) {
+    return
+  }
+
+  // 如果配置为空，说明不需要检测
+  if (!crossPlatformConfig) {
+    return
+  }
+
+  const { currentPrefix, platformPrefixMap } = crossPlatformConfig
+
+  // 检查转换后的属性列表
+  el.attrsList.forEach(attr => {
+    const attrName = attr.name
+
+    // 检查是否使用了平台前缀
+    for (const [platformName, prefix] of Object.entries(platformPrefixMap)) {
+      if (attrName.startsWith(prefix)) {
+        if (isReact(mode)) {
+          // React Native 平台：只允许使用 wx: 前缀，其他前缀报错
+          if (prefix !== 'wx:') {
+            error$1(
+              `React Native mode "${mode}" does not support "${prefix}" prefix. ` +
+              `Use "wx:" prefix instead. Found: "${attrName}"`
+            )
+          }
+        } else {
+          // 小程序平台：检测跨平台语法使用
+          if (platformName !== mode) {
+            // 构建建议的正确属性名
+            const suffixPart = attrName.substring(prefix.length)
+            const suggestedAttr = currentPrefix + suffixPart
+
+            warn$1(
+              `Your target mode is "${mode}", but used "${attrName}". ` +
+              `Did you mean "${suggestedAttr}"?`
+            )
+          }
+        }
+        break
+      }
+    }
+  })
+}
+
 function processMpxTagName (el) {
   const mpxTagName = getAndRemoveAttr(el, 'mpxTagName').val
   if (mpxTagName) {
@@ -2880,6 +2956,9 @@ function processElement (el, root, options, meta) {
 
   processDuplicateAttrsList(el)
 
+  // 检测跨平台语法使用情况并给出警告
+  processCrossPlatformSyntaxWarning(el)
+
   processInjectWxs(el, meta, options)
 
   const transAli = mode === 'ali' && srcMode === 'wx'
diff --git a/packages/webpack-plugin/lib/utils/env.js b/packages/webpack-plugin/lib/utils/env.js
index 4b0390fea0..45625b01c2 100644
--- a/packages/webpack-plugin/lib/utils/env.js
+++ b/packages/webpack-plugin/lib/utils/env.js
@@ -10,8 +10,13 @@ function isMiniProgram (mode) {
     return !isWeb(mode) && !isReact(mode)
 }
 
+function isNoMode (mode) {
+    return mode === 'noMode'
+}
+
 module.exports = {
     isWeb,
     isReact,
-    isMiniProgram
+    isMiniProgram,
+    isNoMode
 }
diff --git a/packages/webpack-plugin/test/platform/common/cross-platform-warning.spec.js b/packages/webpack-plugin/test/platform/common/cross-platform-warning.spec.js
new file mode 100644
index 0000000000..bb3dfa50c6
--- /dev/null
+++ b/packages/webpack-plugin/test/platform/common/cross-platform-warning.spec.js
@@ -0,0 +1,226 @@
+const { compileTemplate, warnFn, errorFn } = require('../util')
+
+describe('cross-platform syntax warning', function () {
+  afterEach(() => {
+    warnFn.mockClear()
+    errorFn.mockClear()
+  })
+
+  it('should not warn for auto-converted attributes (wx:class in ali mode)', function () {
+    // wx:class 会被平台转换规则自动转换为 a:class，所以不会警告
+    const input = '<view wx:class="{{someClass}}">content</view>'
+    compileTemplate(input, { mode: 'ali' })
+    expect(warnFn).not.toHaveBeenCalled()
+  })
+
+  it('should warn when using a: prefix in wx mode (no auto-conversion)', function () {
+    // a:class 在 wx 模式下没有转换规则，会触发警告
+    const input = '<view a:class="{{someClass}}">content</view>'
+    compileTemplate(input, { mode: 'wx' })
+    expect(warnFn).toHaveBeenCalledWith(
+      expect.stringContaining('Your target mode is "wx", but used "a:class". Did you mean "wx:class"?')
+    )
+  })
+
+  it('should warn when using s- prefix in wx mode (no auto-conversion)', function () {
+    // s-if 在 wx 模式下没有转换规则，会触发警告
+    const input = '<view s-if="{{condition}}">content</view>'
+    compileTemplate(input, { mode: 'wx' })
+    expect(warnFn).toHaveBeenCalledWith(
+      expect.stringContaining('Your target mode is "wx", but used "s-if". Did you mean "wx:if"?')
+    )
+  })
+
+  it('should warn when using qq: prefix in ali mode (no auto-conversion)', function () {
+    // qq:for 在 ali 模式下没有转换规则，会触发警告
+    const input = '<view qq:for="{{items}}">content</view>'
+    compileTemplate(input, { mode: 'ali' })
+    expect(warnFn).toHaveBeenCalledWith(
+      expect.stringContaining('Your target mode is "ali", but used "qq:for". Did you mean "a:for"?')
+    )
+  })
+
+  it('should warn when using tt: prefix in swan mode (no auto-conversion)', function () {
+    // tt:style 在 swan 模式下没有转换规则，会触发警告
+    const input = '<view tt:style="{{dynamicStyle}}">content</view>'
+    compileTemplate(input, { mode: 'swan' })
+    expect(warnFn).toHaveBeenCalledWith(
+      expect.stringContaining('Your target mode is "swan", but used "tt:style". Did you mean "s-style"?')
+    )
+  })
+
+  it('should warn when using dd: prefix in qq mode (no auto-conversion)', function () {
+    // dd:show 在 qq 模式下没有转换规则，会触发警告
+    const input = '<view dd:show="{{visible}}">content</view>'
+    compileTemplate(input, { mode: 'qq' })
+    expect(warnFn).toHaveBeenCalledWith(
+      expect.stringContaining('Your target mode is "qq", but used "dd:show". Did you mean "qq:show"?')
+    )
+  })
+
+  it('should not warn when using correct prefix for current mode', function () {
+    const input1 = '<view wx:class="{{someClass}}">content</view>'
+    compileTemplate(input1, { mode: 'wx' })
+    expect(warnFn).not.toHaveBeenCalled()
+
+    const input2 = '<view a:class="{{someClass}}">content</view>'
+    compileTemplate(input2, { mode: 'ali' })
+    expect(warnFn).not.toHaveBeenCalled()
+
+    const input3 = '<view s-if="{{condition}}">content</view>'
+    compileTemplate(input3, { mode: 'swan' })
+    expect(warnFn).not.toHaveBeenCalled()
+
+    const input4 = '<view qq:for="{{items}}">content</view>'
+    compileTemplate(input4, { mode: 'qq' })
+    expect(warnFn).not.toHaveBeenCalled()
+
+    const input5 = '<view tt:style="{{dynamicStyle}}">content</view>'
+    compileTemplate(input5, { mode: 'tt' })
+    expect(warnFn).not.toHaveBeenCalled()
+  })
+
+  it('should not warn for regular attributes without platform prefixes', function () {
+    const input = '<view class="normal" style="color: red;" id="test">content</view>'
+    compileTemplate(input, { mode: 'ali' })
+    expect(warnFn).not.toHaveBeenCalled()
+  })
+
+  it('should warn for cross-platform attributes without auto-conversion', function () {
+    // 只检测没有自动转换规则的属性
+    const input = '<view s-if="{{condition}}" qq:for="{{items}}">content</view>'
+    compileTemplate(input, { mode: 'ali' })
+    expect(warnFn).toHaveBeenCalledTimes(2)
+    expect(warnFn).toHaveBeenCalledWith(
+      expect.stringContaining('Your target mode is "ali", but used "s-if". Did you mean "a:if"?')
+    )
+    expect(warnFn).toHaveBeenCalledWith(
+      expect.stringContaining('Your target mode is "ali", but used "qq:for". Did you mean "a:for"?')
+    )
+  })
+
+  it('should work with nested elements', function () {
+    // 只测试没有自动转换的属性
+    const input = `
+      <view s-if="{{condition}}">
+        <text s-class="{{textClass}}">Hello</text>
+      </view>
+    `
+    compileTemplate(input, { mode: 'ali' })
+    expect(warnFn).toHaveBeenCalledTimes(2)
+    expect(warnFn).toHaveBeenCalledWith(
+      expect.stringContaining('Your target mode is "ali", but used "s-if". Did you mean "a:if"?')
+    )
+    expect(warnFn).toHaveBeenCalledWith(
+      expect.stringContaining('Your target mode is "ali", but used "s-class". Did you mean "a:class"?')
+    )
+  })
+
+  it('should handle all supported platforms', function () {
+    // Test jd: prefix
+    const input1 = '<view jd:ref="myRef">content</view>'
+    compileTemplate(input1, { mode: 'wx' })
+    expect(warnFn).toHaveBeenCalledWith(
+      expect.stringContaining('Your target mode is "wx", but used "jd:ref". Did you mean "wx:ref"?')
+    )
+
+    warnFn.mockClear()
+
+    // Test qa: prefix
+    const input2 = '<view qa:key="{{item.id}}">content</view>'
+    compileTemplate(input2, { mode: 'tt' })
+    expect(warnFn).toHaveBeenCalledWith(
+      expect.stringContaining('Your target mode is "tt", but used "qa:key". Did you mean "tt:key"?')
+    )
+  })
+
+  it('should error for React Native platforms when using non-wx prefixes', function () {
+    const input = '<view a:class="{{someClass}}">content</view>'
+
+    // Test android
+    compileTemplate(input, { mode: 'android' })
+    expect(errorFn).toHaveBeenCalledWith(
+      expect.stringContaining('React Native mode "android" does not support "a:" prefix. Use "wx:" prefix instead. Found: "a:class"')
+    )
+
+    errorFn.mockClear()
+
+    // Test ios
+    compileTemplate(input, { mode: 'ios' })
+    expect(errorFn).toHaveBeenCalledWith(
+      expect.stringContaining('React Native mode "ios" does not support "a:" prefix. Use "wx:" prefix instead. Found: "a:class"')
+    )
+
+    errorFn.mockClear()
+
+    // Test harmony
+    compileTemplate(input, { mode: 'harmony' })
+    expect(errorFn).toHaveBeenCalledWith(
+      expect.stringContaining('React Native mode "harmony" does not support "a:" prefix. Use "wx:" prefix instead. Found: "a:class"')
+    )
+  })
+
+  it('should not warn for React Native platforms when using wx: prefix', function () {
+    const input = '<view wx:class="{{someClass}}">content</view>'
+
+    // Test android
+    compileTemplate(input, { mode: 'android' })
+    expect(warnFn).not.toHaveBeenCalled()
+    expect(errorFn).not.toHaveBeenCalled()
+
+    // Test ios
+    compileTemplate(input, { mode: 'ios' })
+    expect(warnFn).not.toHaveBeenCalled()
+    expect(errorFn).not.toHaveBeenCalled()
+
+    // Test harmony
+    compileTemplate(input, { mode: 'harmony' })
+    expect(warnFn).not.toHaveBeenCalled()
+    expect(errorFn).not.toHaveBeenCalled()
+  })
+
+  it('should handle conditional compilation attributes correctly', function () {
+    // 测试 wx to ali 场景下的条件编译属性
+    const input1 = '<alicom@ali a:if="{{show}}">content</alicom>'
+    compileTemplate(input1, { srcMode: 'wx', mode: 'ali' })
+    expect(warnFn).not.toHaveBeenCalled() // 应该不警告，因为目标是ali模式
+
+    const input2 = '<com a:if@ali="{{show}}">content</com>'
+    compileTemplate(input2, { srcMode: 'wx', mode: 'ali' })
+    expect(warnFn).not.toHaveBeenCalled() // 应该不警告，因为目标是ali模式
+  })
+
+  it('should warn when using a: prefix in web mode', function () {
+    // web 模式应该使用 v- 前缀，使用 a: 会警告
+    const input = '<view a:class="someClass">content</view>'
+    compileTemplate(input, { mode: 'web' })
+    expect(warnFn).toHaveBeenCalledWith(
+      expect.stringContaining('Your target mode is "web", but used "a:class". Did you mean "v-class"?')
+    )
+  })
+
+  it('should warn when using s- prefix in web mode', function () {
+    // web 模式应该使用 v- 前缀，使用 s- 会警告
+    const input = '<view s-if="condition">content</view>'
+    compileTemplate(input, { mode: 'web' })
+    expect(warnFn).toHaveBeenCalledWith(
+      expect.stringContaining('Your target mode is "web", but used "s-if". Did you mean "v-if"?')
+    )
+  })
+
+  it('should not warn when using v- prefix in web mode', function () {
+    // web 模式使用 v- 前缀不应该警告
+    const input = '<div v-if="condition">content</div>'
+    compileTemplate(input, { mode: 'web' })
+    expect(warnFn).not.toHaveBeenCalled()
+  })
+
+  it('should warn when using v- prefix in miniprogram mode', function () {
+    // 小程序模式使用 v- 前缀应该警告
+    const input = '<view v-if="condition">content</view>'
+    compileTemplate(input, { mode: 'wx' })
+    expect(warnFn).toHaveBeenCalledWith(
+      expect.stringContaining('Your target mode is "wx", but used "v-if". Did you mean "wx:if"?')
+    )
+  })
+})