diff --git a/packages/parser/src/formats/shuakami-qq-exporter-chunked.test.ts b/packages/parser/src/formats/shuakami-qq-exporter-chunked.test.ts
new file mode 100644
index 00000000..a2a23ac0
--- /dev/null
+++ b/packages/parser/src/formats/shuakami-qq-exporter-chunked.test.ts
@@ -0,0 +1,69 @@
+import assert from 'node:assert/strict'
+import { mkdtempSync, mkdirSync, rmSync, writeFileSync } from 'node:fs'
+import { tmpdir } from 'node:os'
+import { join } from 'node:path'
+import { describe, it } from 'node:test'
+import { ChatType, MessageType } from '@openchatlab/shared-types'
+
+import { detectFormat, findEntryFileInDirectory, parseFileSync } from '../index'
+
+describe('shuakami-qq-exporter chunked parser', () => {
+  it('detects and parses manifests that store the JSONL format in chunked', async () => {
+    const root = mkdtempSync(join(tmpdir(), 'chatlab-qce-chunked-'))
+    const chunksDir = join(root, 'chunks')
+    const manifestPath = join(root, 'manifest.json')
+
+    try {
+      mkdirSync(chunksDir)
+      writeFileSync(
+        manifestPath,
+        JSON.stringify({
+          metadata: { name: 'QQChatExporter', version: '0.1.0' },
+          chatInfo: { name: 'Test Group', type: 'group', selfUin: '100' },
+          statistics: { totalMessages: 2 },
+          chunked: {
+            format: 'jsonl',
+            chunksDir: 'chunks',
+            chunkFileExt: '.jsonl',
+            maxMessagesPerChunk: 50000,
+            maxBytesPerChunk: 52428800,
+            chunks: [{ relativePath: 'chunks/c000001.jsonl', count: 2 }],
+          },
+        })
+      )
+      writeFileSync(
+        join(chunksDir, 'c000001.jsonl'),
+        [
+          {
+            id: 'message-1',
+            timestamp: 1752192000000,
+            sender: { uid: 'u_100', uin: '100', name: 'Alice', nickname: 'Alice' },
+            type: 'text',
+            content: { text: 'hello' },
+          },
+          {
+            id: 'message-2',
+            timestamp: 1752192060000,
+            sender: { uid: 'u_200', uin: '200', name: 'Bob', nickname: 'Bob' },
+            type: 'text',
+            content: { text: 'recalled' },
+            recalled: true,
+          },
+        ]
+          .map((message) => JSON.stringify(message))
+          .join('\n')
+      )
+
+      assert.equal(detectFormat(manifestPath)?.id, 'shuakami-qq-exporter-chunked')
+      assert.equal(findEntryFileInDirectory(root), manifestPath)
+
+      const result = await parseFileSync(manifestPath)
+      assert.equal(result.meta.type, ChatType.GROUP)
+      assert.equal(result.messages.length, 2)
+      assert.equal(result.messages[1].type, MessageType.RECALL)
+      assert.equal(result.messages[1].content, '[已撤回] recalled')
+    } finally {
+      rmSync(root, { recursive: true, force: true })
+    }
+  })
+})
diff --git a/packages/parser/src/formats/shuakami-qq-exporter-chunked.ts b/packages/parser/src/formats/shuakami-qq-exporter-chunked.ts
index 0c2e4c43..4bc198d0 100644
--- a/packages/parser/src/formats/shuakami-qq-exporter-chunked.ts
+++ b/packages/parser/src/formats/shuakami-qq-exporter-chunked.ts
@@ -48,8 +48,8 @@ export const feature: FormatFeature = {
   priority: 5, // 比单文件版本优先级更高
   extensions: ['.json'],
   signatures: {
-    // 使用 head 签名 "format": "chunked-jsonl" 来区分。
-    head: [/"format"\s*:\s*"chunked-jsonl"/],
+    // V5 使用 metadata.format，0.1.x 将格式标识移至 chunked.format。
+    head: [/"format"\s*:\s*"chunked-jsonl"/, /"chunked"\s*:\s*\{[^{}]*"format"\s*:\s*"jsonl"/],
     requiredFields: ['metadata', 'chatInfo'],
   },
 }
@@ -74,9 +74,9 @@ interface Manifest {
   metadata: {
     name?: string
     copyright?: string
-    exportTime: string
+    exportTime?: string
     version: string
-    format: string
+    format?: string
   }
   chatInfo: {
     name: string
@@ -339,9 +339,10 @@ async function* parseChunkedJsonl(options: ParseOptions): AsyncGenerator<ParseEv
   }
 
   // 验证格式
-  if (manifest.metadata.format !== 'chunked-jsonl') {
-    onLog?.('error', `不支持的格式: ${manifest.metadata.format}`)
-    yield { type: 'error', data: new Error(`不支持的格式: ${manifest.metadata.format}`) }
+  if (manifest.metadata.format !== 'chunked-jsonl' && manifest.chunked.format !== 'jsonl') {
+    const format = manifest.metadata.format ?? manifest.chunked.format ?? 'unknown'
+    onLog?.('error', `不支持的格式: ${format}`)
+    yield { type: 'error', data: new Error(`不支持的格式: ${format}`) }
     return
   }