diff --git a/.gitignore b/.gitignore
index 16c4eca..3bcf7bf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,4 +12,5 @@ build-release/
 dist-release/
 out-electron/
 out-portable/
-packaged/
\ No newline at end of file
+packaged/
+test/
\ No newline at end of file
diff --git a/electron/main/ipc.ts b/electron/main/ipc.ts
index aa5e5e9..5c277e7 100644
--- a/electron/main/ipc.ts
+++ b/electron/main/ipc.ts
@@ -64,8 +64,11 @@ function getDb() {
       max_score REAL NOT NULL DEFAULT 100,
       reference_answer TEXT NOT NULL DEFAULT '',
       rubric TEXT NOT NULL DEFAULT '',
-      sort_order INTEGER NOT NULL DEFAULT 0
+      sort_order INTEGER NOT NULL DEFAULT 0,
+      reference_answer_image TEXT NOT NULL DEFAULT ''
     )`).run()
+    // migrate: add column for existing DBs
+    try { db.prepare('ALTER TABLE rubric ADD COLUMN reference_answer_image TEXT NOT NULL DEFAULT \'\'').run() } catch (_) {}
   }
   return db
 }
@@ -120,17 +123,18 @@ export function setupIpc(win: BrowserWindow): void {
     }, 100)
   })
 
-  ipcMain.handle('ai:grade', async (_event, { imageBase64, rubric, apiConfig, maxScore, referenceAnswer, questionTitle }: {
+  ipcMain.handle('ai:grade', async (_event, { imageBase64, rubric, apiConfig, maxScore, referenceAnswer, questionTitle, referenceAnswerImage }: {
     imageBase64: string
     rubric: string
     apiConfig: { apiKey: string; baseUrl: string; model: string }
     maxScore?: number
     referenceAnswer?: string
     questionTitle?: string
+    referenceAnswerImage?: string
   }) => {
     log.info('IPC: ai:grade')
     try {
-      const result = await callAiApi(imageBase64, rubric, apiConfig, { maxScore, referenceAnswer, questionTitle })
+      const result = await callAiApi(imageBase64, rubric, apiConfig, { maxScore, referenceAnswer, questionTitle, referenceAnswerImage })
       return result
     } catch (err: any) {
       log.error('AI grade failed:', err)
@@ -263,10 +267,10 @@ export function setupIpc(win: BrowserWindow): void {
     log.info(`rubric:storeData: ${questions.length} questions`, JSON.stringify(questions.map((q: any) => ({ title: q.questionTitle, rubricLen: q.rubric?.length }))))
     if (questions.length === 0) return
     d.prepare('DELETE FROM rubric').run()
-    const insert = d.prepare('INSERT INTO rubric (question_title, max_score, reference_answer, rubric, sort_order) VALUES (?, ?, ?, ?, ?)')
+    const insert = d.prepare('INSERT INTO rubric (question_title, max_score, reference_answer, rubric, sort_order, reference_answer_image) VALUES (?, ?, ?, ?, ?, ?)')
     for (let i = 0; i < questions.length; i++) {
       const q = questions[i]
-      insert.run(q.questionTitle || '', q.maxScore ?? 100, q.referenceAnswer || '', q.rubric || '', i)
+      insert.run(q.questionTitle || '', q.maxScore ?? 100, q.referenceAnswer || '', q.rubric || '', i, q.referenceAnswerImage || '')
     }
   })
 
@@ -280,7 +284,8 @@ export function setupIpc(win: BrowserWindow): void {
           questionTitle: r.question_title,
           maxScore: r.max_score,
           referenceAnswer: r.reference_answer,
-          rubric: r.rubric
+          rubric: r.rubric,
+          referenceAnswerImage: r.reference_answer_image || undefined
         })),
         currentIndex: 0
       }
@@ -296,7 +301,8 @@ export function setupIpc(win: BrowserWindow): void {
       questionTitle: r.question_title,
       maxScore: r.max_score,
       referenceAnswer: r.reference_answer,
-      rubric: r.rubric
+      rubric: r.rubric,
+      referenceAnswerImage: r.reference_answer_image || undefined
     }))
     const result = await dialogBox.showSaveDialog({
       defaultPath: '评分标准.json',
@@ -336,7 +342,7 @@ export function setupIpc(win: BrowserWindow): void {
 const dialogPayloads: Record<string, any> = {}
 let gradingPayload: any = null
 
-async function callAiApi(imageBase64: string, rubric: string, config: { apiKey: string; baseUrl: string; model: string }, extras?: { maxScore?: number; referenceAnswer?: string; questionTitle?: string }): Promise<{
+async function callAiApi(imageBase64: string, rubric: string, config: { apiKey: string; baseUrl: string; model: string }, extras?: { maxScore?: number; referenceAnswer?: string; questionTitle?: string; referenceAnswerImage?: string }): Promise<{
   score: number
   confidence: number
   deductions: string[]
@@ -344,7 +350,40 @@ async function callAiApi(imageBase64: string, rubric: string, config: { apiKey:
 }> {
   const systemRole = `你是高校阅卷专家，严格按照评分标准逐项评分。只输出JSON，不包含任何其他文字。`
 
-  const prompt = `${extras?.questionTitle ? `【题目】\n${extras.questionTitle}\n` : ''}【评分标准】
+  const hasRefImage = !!extras?.referenceAnswerImage
+
+  const prompt = hasRefImage
+    ? `${extras?.questionTitle ? `【题目】\n${extras.questionTitle}\n` : ''}【评分标准】
+${rubric || '无'}
+
+【参考答案】
+${extras?.referenceAnswer || '无'}
+
+【满分】
+${extras?.maxScore ?? 100}
+
+图片1：学生答案
+图片2：标准答案
+
+请按照标准答案（图片2）给学生答案（图片1）评分。
+
+---
+
+【评分规则】
+1. 根据评分标准中的各项指标逐项评分，每项给出得分和说明
+2. 各评分项得分之和不得超过满分${extras?.maxScore ?? 100}分
+3. 如果学生答案为空、空白或明显与题目无关，直接给0分
+4. 部分正确时按评分标准酌情给分
+
+【输出要求】
+只输出以下JSON，不要包含markdown代码块、\`\`\`标记、注释或任何其他文字：
+{
+  "score": <总分>,
+  "confidence": <置信度0~1>,
+  "deductions": ["扣分项说明1", "扣分项说明2"],
+  "comment": "总评语及逐项得分说明"
+}`
+    : `${extras?.questionTitle ? `【题目】\n${extras.questionTitle}\n` : ''}【评分标准】
 ${rubric || '无'}
 
 【参考答案】
@@ -374,6 +413,18 @@ ${extras?.maxScore ?? 100}
 }`
 
   const axios = require('axios')
+
+  const userContent: any[] = hasRefImage
+    ? [
+        { type: 'text', text: prompt },
+        { type: 'image_url', image_url: { url: `data:image/png;base64,${imageBase64}` } },
+        { type: 'image_url', image_url: { url: `data:image/png;base64,${extras!.referenceAnswerImage}` } }
+      ]
+    : [
+        { type: 'image_url', image_url: { url: `data:image/png;base64,${imageBase64}` } },
+        { type: 'text', text: prompt }
+      ]
+
   const response = await axios.post(`${config.baseUrl}/chat/completions`, {
     model: config.model,
     messages: [
@@ -383,10 +434,7 @@ ${extras?.maxScore ?? 100}
       },
       {
         role: 'user',
-        content: [
-          { type: 'image_url', image_url: { url: `data:image/png;base64,${imageBase64}` } },
-          { type: 'text', text: prompt }
-        ]
+        content: userContent
       }
     ],
     max_tokens: 4096,
diff --git a/src/components/FloatingToolbar.vue b/src/components/FloatingToolbar.vue
index 8cc5a2e..d8c36c3 100644
--- a/src/components/FloatingToolbar.vue
+++ b/src/components/FloatingToolbar.vue
@@ -113,6 +113,7 @@ async function gradeQuestion(questionIdx: number) {
     rubric: q.rubric || `请根据答案内容评分，满分${q.maxScore}分`,
     maxScore: q.maxScore,
     referenceAnswer: q.referenceAnswer,
+    referenceAnswerImage: q.referenceAnswerImage,
     questionTitle: q.questionTitle,
     apiConfig: {
       apiKey: settingsStore.settings.apiKey,
diff --git a/src/components/ResultDrawer.vue b/src/components/ResultDrawer.vue
index b3e6c7e..694da93 100644
--- a/src/components/ResultDrawer.vue
+++ b/src/components/ResultDrawer.vue
@@ -28,6 +28,7 @@
         <div class="result-section" v-if="currentQuestion.referenceAnswer">
           <div class="section-title">参考答案</div>
           <div class="reference-text">{{ currentQuestion.referenceAnswer }}</div>
+          <img v-if="currentQuestion.referenceAnswerImage" class="ref-image" :src="'data:image/png;base64,' + currentQuestion.referenceAnswerImage" />
         </div>
 
         <div class="result-score">
@@ -143,6 +144,7 @@ async function gradeAt(idx: number) {
       rubric: q.rubric || `请根据答案内容评分，满分${q.maxScore}分`,
       maxScore: q.maxScore,
       referenceAnswer: q.referenceAnswer,
+      referenceAnswerImage: q.referenceAnswerImage,
       questionTitle: q.questionTitle,
       apiConfig: {
         apiKey: settingsStore.settings.apiKey,
@@ -353,6 +355,13 @@ async function confirmScore() {
   border-radius: 6px;
   white-space: pre-wrap;
 }
+.ref-image {
+  max-width: 100%;
+  max-height: 300px;
+  border-radius: 6px;
+  margin-top: 8px;
+  border: 1px solid #e4e7ed;
+}
 .error-message {
   background: #fef0f0;
   color: #f56c6c;
diff --git a/src/components/RubricEditor.vue b/src/components/RubricEditor.vue
index 12754a0..ae24450 100644
--- a/src/components/RubricEditor.vue
+++ b/src/components/RubricEditor.vue
@@ -25,6 +25,15 @@
           </el-form-item>
           <el-form-item label="参考答案">
             <el-input v-model="questions[activeIndex].referenceAnswer" type="textarea" :rows="3" placeholder="输入参考答案（可选）" />
+            <div class="ref-image-section">
+              <template v-if="questions[activeIndex].referenceAnswerImage">
+                <div class="ref-image-preview">
+                  <img :src="'data:image/png;base64,' + questions[activeIndex].referenceAnswerImage" />
+                  <el-button size="small" type="danger" text @click="removeRefImage(activeIndex)">删除图片</el-button>
+                </div>
+              </template>
+              <el-button size="small" @click="uploadRefImage(activeIndex)">上传参考答案图片</el-button>
+            </div>
           </el-form-item>
           <el-form-item label="评分标准">
             <el-input v-model="questions[activeIndex].rubric" type="textarea" :rows="6" placeholder="输入评分标准" />
@@ -128,6 +137,18 @@ async function handleImport() {
 function handleClose() {
   window.electronAPI?.dialog.close()
 }
+
+async function uploadRefImage(idx: number) {
+  if (!window.electronAPI) return
+  const data = await window.electronAPI.dialog.openImage()
+  if (data) {
+    questions.value[idx].referenceAnswerImage = data.base64
+  }
+}
+
+function removeRefImage(idx: number) {
+  delete questions.value[idx].referenceAnswerImage
+}
 </script>
 
 <style scoped>
@@ -178,4 +199,21 @@ function handleClose() {
   display: flex;
   gap: 8px;
 }
+.ref-image-section {
+  margin-top: 8px;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+.ref-image-preview {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+.ref-image-preview img {
+  max-height: 120px;
+  max-width: 200px;
+  border-radius: 4px;
+  border: 1px solid #e4e7ed;
+}
 </style>
\ No newline at end of file
diff --git a/src/types/index.ts b/src/types/index.ts
index e375f89..51e7b8a 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -3,6 +3,7 @@ export interface QuestionItem {
   maxScore: number
   referenceAnswer: string
   rubric: string
+  referenceAnswerImage?: string
 }
 
 export interface GradeResult {
@@ -56,7 +57,7 @@ export interface ElectronAPI {
     onCompleted: (callback: (base64: string) => void) => () => void
   }
   ai: {
-    grade: (data: { imageBase64: string; rubric: string; apiConfig: ApiConfig; maxScore?: number; referenceAnswer?: string; questionTitle?: string }) => Promise<GradeResult>
+    grade: (data: { imageBase64: string; rubric: string; apiConfig: ApiConfig; maxScore?: number; referenceAnswer?: string; questionTitle?: string; referenceAnswerImage?: string }) => Promise<GradeResult>
   }
   settings: {
     get: () => Promise<AppSettings>