diff --git a/packages/taro-transformer-wx/src/class.ts b/packages/taro-transformer-wx/src/class.ts
index e1b4d4792b4c..a871bff4788d 100644
--- a/packages/taro-transformer-wx/src/class.ts
+++ b/packages/taro-transformer-wx/src/class.ts
@@ -106,7 +106,7 @@ class Transformer {
     components: [],
     componentProperies: []
   }
-  private methods: ClassMethodsMap = new Map()
+  private methods: ClassMethodsMap
   private renderJSX: Map<string, NodePath<t.ClassMethod>> = new Map()
   private refIdMap: Map<NodePath<t.ClassMethod>, Set<t.Identifier>> = new Map()
   private initState: Set<string> = new Set()
@@ -128,13 +128,15 @@ class Transformer {
     path: NodePath<t.ClassDeclaration>,
     sourcePath: string,
     componentProperies: string[],
-    sourceDir: string
+    sourceDir: string,
+    methods: ClassMethodsMap
   ) {
     this.classPath = path
     this.sourcePath = sourcePath
     this.sourceDir = sourceDir
     this.moduleNames = Object.keys(path.scope.getAllBindings('module'))
     this.componentProperies = new Set(componentProperies)
+    this.methods = methods
     this.compile()
   }
 
@@ -924,7 +926,7 @@ class Transformer {
         ]))
       this.classPath.node.body.body = this.classPath.node.body.body.concat(method)
     } else if (t.isMemberExpression(expr) && !t.isThisExpression(expr.object)) {
-      // @TODO: 新旧 props 系统在事件处理上耦合太深，快应用应用新 props 把旧 props 系统逻辑全部清除
+      // @TODO: 新旧 props 系统在事件处理上耦合太深，快应用应用新 props 把旧 props 系统逻辑全部清楚
       this.buildAnonyMousFunc(path, attr, expr)
     }
   }
diff --git a/packages/taro-transformer-wx/src/index.ts b/packages/taro-transformer-wx/src/index.ts
index a6e912fe9fa1..732331b37aad 100644
--- a/packages/taro-transformer-wx/src/index.ts
+++ b/packages/taro-transformer-wx/src/index.ts
@@ -244,6 +244,7 @@ export default function transform (options: Options): TransformResult {
   const componentSourceMap = new Map<string, string[]>()
   const imageSource = new Set<string>()
   const importSources = new Set<string>()
+  const classMethods = new Map<string, NodePath<t.ClassMethod | t.ClassProperty>>()
   let componentProperies: string[] = []
   let mainClass!: NodePath<t.ClassDeclaration>
   let storeName!: string
@@ -330,8 +331,11 @@ export default function transform (options: Options): TransformResult {
       mainClass = path as any
     },
     ClassMethod (path) {
-      if (t.isIdentifier(path.node.key) && path.node.key.name === 'render') {
-        renderMethod = path
+      if (t.isIdentifier(path.node.key)) {
+        if (path.node.key.name === 'render') {
+          renderMethod = path
+        }
+        classMethods.set(path.node.key.name, path)
       }
     },
     IfStatement (path) {
@@ -613,6 +617,20 @@ export default function transform (options: Options): TransformResult {
       }
     },
     ClassProperty (path) {
+      const { key: { name }, value } = path.node
+      if (t.isArrowFunctionExpression(value) || t.isFunctionExpression(value)) {
+        classMethods.set(name, path)
+        if (name.startsWith('render')) {
+          path.replaceWith(t.classMethod(
+            'method',
+            t.identifier(name),
+            value.params,
+            t.isBlockStatement(value.body) ? value.body : t.blockStatement([
+              t.returnStatement(value.body)
+            ])
+          ))
+        }
+      }
       if (Adapter.type !== Adapters.quickapp) {
         return
       }
@@ -798,7 +816,7 @@ export default function transform (options: Options): TransformResult {
     )
     return { ast } as TransformResult
   }
-  result = new Transformer(mainClass, options.sourcePath, componentProperies, options.sourceDir!).result
+  result = new Transformer(mainClass, options.sourcePath, componentProperies, options.sourceDir!, classMethods).result
   result.code = generate(ast).code
   result.ast = ast
   const lessThanSignReg = new RegExp(lessThanSignPlacehold, 'g')