diff --git a/frontend/src/views/exam/practice.vue b/frontend/src/views/exam/practice.vue
index cb39519..bc70dfd 100644
--- a/frontend/src/views/exam/practice.vue
+++ b/frontend/src/views/exam/practice.vue
@@ -1184,10 +1184,15 @@ const formatCorrectAnswer = (question: any) => {
   if (question.type === 'single' || question.type === 'multiple') {
     // 如果有correctAnswer字段（来自Dify的原始correct）
     if (question.correctAnswer) {
-      // 多选题格式优化：将 "A：xxx,B：xxx" 改为换行显示
-      // 匹配 ",A：" 或 ",B：" 等格式，在逗号后的选项字母前换行
-      const formatted = question.correctAnswer.replace(/,([A-Za-z][：:])/g, '\n$1')
-      return formatted
+      // 多选题格式优化：将 "A：xxx、B：xxx" 或 "A：xxx,B：xxx" 改为换行显示
+      // 使用更精确的匹配：提取完整的选项格式 X：内容
+      const optionPattern = /([A-Za-z][：:])([^A-Za-z]*?)(?=(?:[,、]?[A-Za-z][：:])|$)/g
+      const matches = [...question.correctAnswer.matchAll(optionPattern)]
+      if (matches.length > 1) {
+        // 多个选项，换行显示
+        return matches.map(m => m[1] + m[2].trim()).join('\n')
+      }
+      return question.correctAnswer
     }
     // 否则从options中提取
     return question.options