diff --git a/server/apps/exam/models.py b/server/apps/exam/models.py
index b86b5c2..6c3cc0c 100644
--- a/server/apps/exam/models.py
+++ b/server/apps/exam/models.py
@@ -50,10 +50,10 @@ class Question(CommonAModel):
 
 class Paper(CommonAModel):
     name = models.CharField(max_length=200, verbose_name='名称')
-    questions = models.ManyToManyField(Question, through='PaperQuestions')
+    questions = models.ManyToManyField(Question, through='PaperQuestion')
     limit = models.IntegerField(default=0, verbose_name='限时(分钟)')
     total_score = models.FloatField(default=0, verbose_name='满分')
-    pass_score = models.FloatField(default=0, verbose_name='及格分数')
+    pass_score = models.FloatField(default=0, verbose_name='通过分数')
     danxuan_count = models.IntegerField(default=0, verbose_name='单选数量')
     danxuan_score = models.FloatField(default=2, verbose_name='单选分数')
     duoxuan_count = models.IntegerField(default=0, verbose_name='多选数量')
@@ -68,7 +68,7 @@ class Paper(CommonAModel):
         return self.name
 
 
-class PaperQuestions(BaseModel):
+class PaperQuestion(BaseModel):
     paper = models.ForeignKey(Paper, on_delete=models.CASCADE, verbose_name='试卷')
     question = models.ForeignKey(Question, on_delete=models.CASCADE, verbose_name='试题')
     total_score = models.FloatField(default=0, verbose_name='单题满分')
@@ -78,7 +78,7 @@ class Exam(CommonAModel):
     """
     组织的正式考试
     """
-    code = models.CharField('考试编号', max_length=100, null=True, blank=True)
+    code = models.CharField('考试编号', max_length=100, null=True, blank=True, unique=True)
     name = models.CharField('名称', max_length=100)
     place = models.CharField('考试地点', max_length=100, null=True, blank=True)
     open_time = models.DateTimeField('开启时间', null=True, blank=True)
@@ -91,7 +91,7 @@ class Exam(CommonAModel):
     def __str__(self):
         return self.name
 
-class ExamTest(CommonAModel):
+class ExamRecord(CommonAModel):
     '''
     考试记录表
     '''
@@ -111,16 +111,17 @@ class ExamTest(CommonAModel):
     end_time = models.DateTimeField(verbose_name='结束答题时间')
     detail = models.ManyToManyField(Question, verbose_name='答题记录', through='AnswerDetail')
     is_pass = models.BooleanField(default=True, verbose_name='是否通过')
-    exam = models.ForeignKey(Exam, verbose_name='关联的正式考试', null=True, blank=True, related_name='examtest_exam', on_delete= models.SET_NULL)
+    exam = models.ForeignKey(Exam, verbose_name='关联的正式考试', null=True, blank=True, on_delete= models.SET_NULL)
+    questions = JSONField(default=list, verbose_name='下发的题目列表', blank=True)
 
     class Meta:
-        verbose_name = '模拟考试'
+        verbose_name = '考试记录'
         verbose_name_plural = verbose_name
 
 
 
 class AnswerDetail(BaseModel):
-    examtest = models.ForeignKey(ExamTest, on_delete=models.CASCADE, related_name='answerdetail_examtest')
+    examrecord = models.ForeignKey(ExamRecord, on_delete=models.CASCADE)
     question = models.ForeignKey(Question, on_delete=models.CASCADE)
     user_answer = JSONField(null=True,blank=True)
     score = models.FloatField(default=0, verbose_name='本题得分')
diff --git a/server/apps/exam/serializers.py b/server/apps/exam/serializers.py
index 765ddfd..fe2e326 100644
--- a/server/apps/exam/serializers.py
+++ b/server/apps/exam/serializers.py
@@ -1,6 +1,7 @@
-from rest_framework.serializers import ModelSerializer, CharField
+from rest_framework.serializers import ModelSerializer, CharField, Serializer, SerializerMethodField, FloatField
+from rest_framework import serializers
 
-from apps.exam.models import Question, Questioncat, Paper, Exam
+from apps.exam.models import Question, Questioncat, Paper, Exam, PaperQuestion
 
 
 class QuestioncatSerializer(ModelSerializer):
@@ -20,6 +21,45 @@ class PaperSerializer(ModelSerializer):
         model = Paper
         exclude = ('questions',)
 
+
+class QuestionReadSerializer(ModelSerializer):
+    class Meta:
+        model = Question
+        exclude = ['right']
+
+class PaperQuestionSerializer(Serializer):
+    id = CharField(label='题目ID')
+    total_score = FloatField(label='单题满分')
+
+class PaperCreateUpdateSerializer(ModelSerializer):
+    questions_ = PaperQuestionSerializer(many=True)
+    class Meta:
+        model = Paper
+        fields = '__all__'
+
+class PaperQuestionDetailSerializer(ModelSerializer):
+    id = serializers.IntegerField(source='question.id')
+    name = serializers.ReadOnlyField(source='question.name')
+    options = serializers.ReadOnlyField(source='question.options')
+    right = serializers.ReadOnlyField(source='question.right')
+    type = serializers.ReadOnlyField(source='question.type')
+    img = serializers.ReadOnlyField(source='question.img')
+    questioncat_name = serializers.ReadOnlyField(source='question.questioncat.name')
+    level = serializers.ReadOnlyField(source='question.level')
+    class Meta:
+        model = PaperQuestion
+        fields = ('id','name','options','right','type','level','total_score','questioncat_name', 'img')
+
+class PaperDetailSerializer(ModelSerializer):
+    questions_ = SerializerMethodField()
+    class Meta:
+        model = Paper
+        fields = '__all__'
+    
+    def get_questions_(self, instance):
+        pqs = PaperQuestion.objects.filter(paper=instance)
+        return PaperQuestionDetailSerializer(pqs, many=True).data
+
 class ExamCreateUpdateSerializer(ModelSerializer):
     class Meta:
         model = Exam
@@ -29,4 +69,7 @@ class ExamListSerializer(ModelSerializer):
     create_by_name = CharField(source='create_by.name', read_only=True)
     class Meta:
         model = Exam
-        fields = '__all__'
\ No newline at end of file
+        fields = '__all__'
+    
+class ExamAttendSerializer(Serializer):
+    code = CharField(label="考试编号")
\ No newline at end of file