diff --git a/backend/app/services/exam_service.py b/backend/app/services/exam_service.py
index 55c82e6..0b65fa1 100644
--- a/backend/app/services/exam_service.py
+++ b/backend/app/services/exam_service.py
@@ -11,6 +11,7 @@ from app.models.exam import Exam, Question, ExamResult
 from app.models.exam_mistake import ExamMistake
 from app.models.course import Course, KnowledgePoint
 from app.core.exceptions import BusinessException, ErrorCode
+from app.utils.score_distributor import ScoreDistributor
 
 
 class ExamService:
@@ -54,27 +55,38 @@ class ExamService:
             all_questions, min(question_count, len(all_questions))
         )
 
-        # 构建题目数据
+        # 使用智能分数分配器，确保总分为整数且分配合理
+        total_score = 100.0  # 固定总分为100分
+        actual_question_count = len(selected_questions)
+        
+        # 创建分数分配器
+        distributor = ScoreDistributor(total_score, actual_question_count)
+        distributed_scores = distributor.distribute(mode="integer")
+
+        # 构建题目数据，使用分配后的分数
         questions_data = []
-        for q in selected_questions:
+        for i, q in enumerate(selected_questions):
             question_data = {
                 "id": str(q.id),
                 "type": q.question_type,
                 "title": q.title,
                 "content": q.content,
                 "options": q.options,
-                "score": q.score,
+                "score": distributed_scores[i],  # 使用智能分配的分数
             }
             questions_data.append(question_data)
 
+        # 计算及格分数（向上取整，确保公平）
+        pass_score = ScoreDistributor.calculate_pass_score(total_score, 0.6)
+
         # 创建考试记录
         exam = Exam(
             user_id=user_id,
             course_id=course_id,
             exam_name=f"{course.name} - 随机测试",
-            question_count=len(selected_questions),
-            total_score=sum(q.score for q in selected_questions),
-            pass_score=sum(q.score for q in selected_questions) * 0.6,
+            question_count=actual_question_count,
+            total_score=total_score,
+            pass_score=pass_score,
             duration_minutes=60,
             status="started",
             questions={"questions": questions_data},
@@ -140,6 +152,9 @@ class ExamService:
         for question_data in exam.questions["questions"]:
             question_id = question_data["id"]
             question = questions_map.get(question_id)
+            
+            # 使用考试创建时分配的分数（智能分配后的整数分数）
+            allocated_score = question_data.get("score", 10.0)
 
             if not question:
                 continue
@@ -148,7 +163,7 @@ class ExamService:
             is_correct = user_answer == question.correct_answer
 
             if is_correct:
-                total_score += question.score
+                total_score += allocated_score  # 使用分配的分数
                 correct_count += 1
 
             # 创建答题结果记录
@@ -157,7 +172,7 @@ class ExamService:
                 question_id=int(question_id),
                 user_answer=user_answer,
                 is_correct=is_correct,
-                score=question.score if is_correct else 0.0,
+                score=allocated_score if is_correct else 0.0,  # 使用分配的分数
             )
             db.add(exam_result)
 
diff --git a/backend/app/utils/__init__.py b/backend/app/utils/__init__.py
new file mode 100644
index 0000000..ab2286d
--- /dev/null
+++ b/backend/app/utils/__init__.py
@@ -0,0 +1,14 @@
+"""
+工具模块
+"""
+from app.utils.score_distributor import (
+    ScoreDistributor,
+    distribute_scores,
+    get_question_score,
+)
+
+__all__ = [
+    "ScoreDistributor",
+    "distribute_scores",
+    "get_question_score",
+]
diff --git a/backend/app/utils/score_distributor.py b/backend/app/utils/score_distributor.py
new file mode 100644
index 0000000..dced455
--- /dev/null
+++ b/backend/app/utils/score_distributor.py
@@ -0,0 +1,218 @@
+"""
+分数分配工具
+
+解决题目分数无法整除的问题，确保：
+1. 所有题目分数之和精确等于总分
+2. 题目分数差异最小化（最多相差1分）
+3. 支持整数分配和小数分配两种模式
+"""
+from typing import List, Tuple
+from decimal import Decimal, ROUND_HALF_UP
+import math
+
+
+class ScoreDistributor:
+    """
+    智能分数分配器
+    
+    使用示例：
+        distributor = ScoreDistributor(total_score=100, question_count=6)
+        scores = distributor.distribute()
+        # 结果: [17, 17, 17, 17, 16, 16]  总和=100
+    """
+    
+    def __init__(self, total_score: float, question_count: int):
+        """
+        初始化分配器
+        
+        Args:
+            total_score: 总分（如 100）
+            question_count: 题目数量（如 6）
+        """
+        if question_count <= 0:
+            raise ValueError("题目数量必须大于0")
+        if total_score <= 0:
+            raise ValueError("总分必须大于0")
+            
+        self.total_score = total_score
+        self.question_count = question_count
+    
+    def distribute_integer(self) -> List[int]:
+        """
+        整数分配模式
+        
+        将总分分配为整数，前面的题目分数可能比后面的多1分
+        
+        Returns:
+            分数列表，如 [17, 17, 17, 17, 16, 16]
+            
+        示例：
+            100分 / 6题 = [17, 17, 17, 17, 16, 16]
+            100分 / 7题 = [15, 15, 14, 14, 14, 14, 14]
+        """
+        total = int(self.total_score)
+        count = self.question_count
+        
+        # 基础分数（向下取整）
+        base_score = total // count
+        # 需要额外加1分的题目数量
+        extra_count = total % count
+        
+        # 生成分数列表
+        scores = []
+        for i in range(count):
+            if i < extra_count:
+                scores.append(base_score + 1)
+            else:
+                scores.append(base_score)
+        
+        return scores
+    
+    def distribute_decimal(self, decimal_places: int = 1) -> List[float]:
+        """
+        小数分配模式
+        
+        将总分分配为小数，最后一题用于补齐差额
+        
+        Args:
+            decimal_places: 小数位数，默认1位
+            
+        Returns:
+            分数列表，如 [16.7, 16.7, 16.7, 16.7, 16.7, 16.5]
+        """
+        count = self.question_count
+        
+        # 计算每题分数并四舍五入
+        per_score = self.total_score / count
+        rounded_score = round(per_score, decimal_places)
+        
+        # 前 n-1 题使用四舍五入的分数
+        scores = [rounded_score] * (count - 1)
+        
+        # 最后一题用总分减去前面的和，确保总分精确
+        last_score = round(self.total_score - sum(scores), decimal_places)
+        scores.append(last_score)
+        
+        return scores
+    
+    def distribute(self, mode: str = "integer") -> List[float]:
+        """
+        分配分数
+        
+        Args:
+            mode: 分配模式
+                - "integer": 整数分配（推荐）
+                - "decimal": 小数分配
+                - "decimal_1": 保留1位小数
+                - "decimal_2": 保留2位小数
+                
+        Returns:
+            分数列表
+        """
+        if mode == "integer":
+            return [float(s) for s in self.distribute_integer()]
+        elif mode == "decimal" or mode == "decimal_1":
+            return self.distribute_decimal(1)
+        elif mode == "decimal_2":
+            return self.distribute_decimal(2)
+        else:
+            return [float(s) for s in self.distribute_integer()]
+    
+    def get_score_for_question(self, question_index: int, mode: str = "integer") -> float:
+        """
+        获取指定题目的分数
+        
+        Args:
+            question_index: 题目索引（从0开始）
+            mode: 分配模式
+            
+        Returns:
+            该题目的分数
+        """
+        scores = self.distribute(mode)
+        if 0 <= question_index < len(scores):
+            return scores[question_index]
+        raise IndexError(f"题目索引 {question_index} 超出范围 [0, {self.question_count})")
+    
+    def validate(self) -> Tuple[bool, str]:
+        """
+        验证分配结果
+        
+        Returns:
+            (是否有效, 信息)
+        """
+        scores = self.distribute()
+        total = sum(scores)
+        
+        if abs(total - self.total_score) < 0.01:
+            return True, f"分配有效：{scores}，总分={total}"
+        else:
+            return False, f"分配无效：{scores}，总分={total}，期望={self.total_score}"
+    
+    @staticmethod
+    def format_score(score: float, decimal_places: int = 1) -> str:
+        """
+        格式化分数显示
+        
+        Args:
+            score: 分数
+            decimal_places: 小数位数
+            
+        Returns:
+            格式化的分数字符串
+        """
+        if score == int(score):
+            return str(int(score))
+        return f"{score:.{decimal_places}f}"
+    
+    @staticmethod
+    def calculate_pass_score(total_score: float, pass_rate: float = 0.6) -> float:
+        """
+        计算及格分数
+        
+        Args:
+            total_score: 总分
+            pass_rate: 及格率，默认60%
+            
+        Returns:
+            及格分数（整数）
+        """
+        return math.ceil(total_score * pass_rate)
+
+
+def distribute_scores(total_score: float, question_count: int, mode: str = "integer") -> List[float]:
+    """
+    便捷函数：分配分数
+    
+    Args:
+        total_score: 总分
+        question_count: 题目数量
+        mode: 分配模式（integer/decimal）
+        
+    Returns:
+        分数列表
+    """
+    distributor = ScoreDistributor(total_score, question_count)
+    return distributor.distribute(mode)
+
+
+def get_question_score(
+    total_score: float, 
+    question_count: int, 
+    question_index: int,
+    mode: str = "integer"
+) -> float:
+    """
+    便捷函数：获取指定题目的分数
+    
+    Args:
+        total_score: 总分
+        question_count: 题目数量
+        question_index: 题目索引（从0开始）
+        mode: 分配模式
+        
+    Returns:
+        该题目的分数
+    """
+    distributor = ScoreDistributor(total_score, question_count)
+    return distributor.get_score_for_question(question_index, mode)
diff --git a/frontend/src/api/dashboard.ts b/frontend/src/api/dashboard.ts
index 0e4d79c..ffb4a99 100644
--- a/frontend/src/api/dashboard.ts
+++ b/frontend/src/api/dashboard.ts
@@ -49,9 +49,7 @@ export interface DepartmentData {
   pass_rate: number
   avg_hours: number
   avg_level: number
-}
-
-// 学习趋势
+}// 学习趋势
 export interface TrendData {
   dates: string[]
   trend: Array<{
@@ -175,4 +173,4 @@ export function getTeamDashboard() {
  */
 export function getFullDashboardData() {
   return request.get<FullDashboardData>('/dashboard/all')
-}
\ No newline at end of file
+}
diff --git a/frontend/src/utils/scoreFormatter.ts b/frontend/src/utils/scoreFormatter.ts
new file mode 100644
index 0000000..147d9ee
--- /dev/null
+++ b/frontend/src/utils/scoreFormatter.ts
@@ -0,0 +1,154 @@
+/**
+ * 分数格式化工具
+ * 
+ * 用于在前端显示分数时进行格式化，避免显示过长的小数
+ */
+
+/**
+ * 格式化分数显示
+ * 
+ * @param score 分数
+ * @param decimalPlaces 小数位数，默认1位
+ * @returns 格式化后的分数字符串
+ * 
+ * @example
+ * formatScore(16.666666) // "16.7"
+ * formatScore(17) // "17"
+ * formatScore(16.5, 0) // "17"
+ */
+export function formatScore(score: number, decimalPlaces: number = 1): string {
+  // 如果是整数，直接返回
+  if (Number.isInteger(score)) {
+    return score.toString()
+  }
+  
+  // 四舍五入到指定小数位
+  const rounded = Number(score.toFixed(decimalPlaces))
+  
+  // 如果四舍五入后是整数，去掉小数点
+  if (Number.isInteger(rounded)) {
+    return rounded.toString()
+  }
+  
+  return rounded.toFixed(decimalPlaces)
+}
+
+/**
+ * 格式化分数显示（带单位）
+ * 
+ * @param score 分数
+ * @param unit 单位，默认"分"
+ * @returns 格式化后的分数字符串
+ * 
+ * @example
+ * formatScoreWithUnit(16.7) // "16.7分"
+ * formatScoreWithUnit(100) // "100分"
+ */
+export function formatScoreWithUnit(score: number, unit: string = '分'): string {
+  return `${formatScore(score)}${unit}`
+}
+
+/**
+ * 格式化百分比
+ * 
+ * @param value 值（0-1 或 0-100）
+ * @param isPercent 是否已经是百分比形式（0-100），默认false
+ * @returns 格式化后的百分比字符串
+ * 
+ * @example
+ * formatPercent(0.8567) // "85.7%"
+ * formatPercent(85.67, true) // "85.7%"
+ */
+export function formatPercent(value: number, isPercent: boolean = false): string {
+  const percent = isPercent ? value : value * 100
+  return `${formatScore(percent)}%`
+}
+
+/**
+ * 计算及格分数
+ * 
+ * @param totalScore 总分
+ * @param passRate 及格率，默认0.6
+ * @returns 及格分数（向上取整）
+ */
+export function calculatePassScore(totalScore: number, passRate: number = 0.6): number {
+  return Math.ceil(totalScore * passRate)
+}
+
+/**
+ * 判断是否及格
+ * 
+ * @param score 得分
+ * @param passScore 及格分数
+ * @returns 是否及格
+ */
+export function isPassed(score: number, passScore: number): boolean {
+  return score >= passScore
+}
+
+/**
+ * 获取分数等级
+ * 
+ * @param score 得分
+ * @param totalScore 总分
+ * @returns 等级: 'excellent' | 'good' | 'pass' | 'fail'
+ */
+export function getScoreLevel(score: number, totalScore: number): 'excellent' | 'good' | 'pass' | 'fail' {
+  const ratio = score / totalScore
+  
+  if (ratio >= 0.9) return 'excellent'
+  if (ratio >= 0.75) return 'good'
+  if (ratio >= 0.6) return 'pass'
+  return 'fail'
+}
+
+/**
+ * 获取分数等级对应的颜色
+ * 
+ * @param level 等级
+ * @returns 颜色值
+ */
+export function getScoreLevelColor(level: 'excellent' | 'good' | 'pass' | 'fail'): string {
+  const colors = {
+    excellent: '#67c23a', // 绿色
+    good: '#409eff',      // 蓝色
+    pass: '#e6a23c',      // 橙色
+    fail: '#f56c6c',      // 红色
+  }
+  return colors[level]
+}
+
+/**
+ * 智能分配分数（前端预览用）
+ * 
+ * @param totalScore 总分
+ * @param questionCount 题目数量
+ * @returns 分数数组
+ * 
+ * @example
+ * distributeScores(100, 6) // [17, 17, 17, 17, 16, 16]
+ */
+export function distributeScores(totalScore: number, questionCount: number): number[] {
+  if (questionCount <= 0) return []
+  
+  const baseScore = Math.floor(totalScore / questionCount)
+  const extraCount = totalScore % questionCount
+  
+  const scores: number[] = []
+  for (let i = 0; i < questionCount; i++) {
+    scores.push(i < extraCount ? baseScore + 1 : baseScore)
+  }
+  
+  return scores
+}
+
+export default {
+  formatScore,
+  formatScoreWithUnit,
+  formatPercent,
+  calculatePassScore,
+  isPassed,
+  getScoreLevel,
+  getScoreLevelColor,
+  distributeScores,
+}