diff --git a/theme/src/node/pages/autoCategory.ts b/theme/src/node/pages/autoCategory.ts
index 476a3e2d..31f8cc7d 100644
--- a/theme/src/node/pages/autoCategory.ts
+++ b/theme/src/node/pages/autoCategory.ts
@@ -1,6 +1,7 @@
 import type { Page } from 'vuepress/core'
 import type { PostsCategoryItem, ThemePageData } from '../../shared/index.js'
-import { ensureEndingSlash, ensureLeadingSlash, removeLeadingSlash } from '@vuepress/helper'
+import { ensureEndingSlash, ensureLeadingSlash } from '@vuepress/helper'
+import { path } from 'vuepress/utils'
 import { findCollection } from '../collections/index.js'
 import { hash } from '../utils/index.js'
 
@@ -21,11 +22,11 @@ export function autoCategory(page: Page<ThemePageData>): void {
   if (page.data.type || !pagePath || collection.categories === false)
     return
 
+  const collectionDir = ensureEndingSlash(path.join(page.pathLocale, collection.dir))
   const list = ensureLeadingSlash(pagePath)
-    .slice(page.pathLocale.length + ensureEndingSlash(removeLeadingSlash(collection.dir)).length)
+    .slice(collectionDir.length)
     .split('/')
     .slice(0, -1)
-
   const categoryList: PostsCategoryItem[] = list
     .map((category, index) => {
       const match = category.match(RE_CATEGORY) || []
diff --git a/theme/src/node/prepare/preparePostsData.ts b/theme/src/node/prepare/preparePostsData.ts
index 670b2af0..4a5f9f5e 100644
--- a/theme/src/node/prepare/preparePostsData.ts
+++ b/theme/src/node/prepare/preparePostsData.ts
@@ -6,9 +6,9 @@ import type {
   ThemePosts,
   ThemePostsItem,
 } from '../../shared/index.js'
-import fs from 'node:fs'
 import { removeLeadingSlash } from '@vuepress/helper'
 import dayjs from 'dayjs'
+import { fs, path } from 'vuepress/utils'
 import { getThemeConfig } from '../loadConfig/index.js'
 import { createMatcher, logger, perf, resolveContent, withBase, writeTemp } from '../utils/index.js'
 import { isEncryptPage } from './prepareEncrypt.js'
@@ -97,10 +97,11 @@ export async function preparedPostsData(app: App): Promise<void> {
       continue
     for (const { include, exclude, dir } of collections.filter(item => item.type === 'post')) {
       const source = app.dir.source(removeLeadingSlash(withBase(dir, locale)))
-      const isMatched = createMatcher(include, exclude, source)
-
+      const isMatched = createMatcher(include, exclude)
       postsData[withBase(dir, locale)] = pages
-        .filter(({ filePath }) => filePath?.startsWith(source) && isMatched(filePath))
+        .filter(({ filePath }) => {
+          return filePath?.startsWith(source) && isMatched(path.relative(source, filePath!))
+        })
         .sort(sortPage)
         .map(page => processPostData(page, isBuild, encrypt))
     }