diff --git a/src/main/java/com/project/interaction/controller/InteractionController.java b/src/main/java/com/project/interaction/controller/InteractionController.java
index 487d1f8..4985aed 100644
--- a/src/main/java/com/project/interaction/controller/InteractionController.java
+++ b/src/main/java/com/project/interaction/controller/InteractionController.java
@@ -62,7 +62,7 @@ public class InteractionController {
     }
 
     /**
-     * 判断任务是否删除
+     * 判断任务是否删除，供算法判断请求是否需要生题
      */
     @PostMapping("/isDeletedTask")
     public Result<Boolean> isDeletedTask(Long taskId,@RequestParam("taskKpIds") List<Long> taskKpIds,Integer type){
diff --git a/src/main/java/com/project/question/domain/service/impl/QuestionInventoryDomainServiceImpl.java b/src/main/java/com/project/question/domain/service/impl/QuestionInventoryDomainServiceImpl.java
index 1410f18..5e5870d 100644
--- a/src/main/java/com/project/question/domain/service/impl/QuestionInventoryDomainServiceImpl.java
+++ b/src/main/java/com/project/question/domain/service/impl/QuestionInventoryDomainServiceImpl.java
@@ -1,5 +1,6 @@
 package com.project.question.domain.service.impl;
 
+import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.date.DateUtil;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.project.base.domain.result.Result;
@@ -19,10 +20,13 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import java.util.Collections;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
 
 @Service
 @Slf4j
@@ -113,6 +117,18 @@ public class QuestionInventoryDomainServiceImpl implements QuestionInventoryDoma
         List<TaskKnowledgePointEntity> kpList = taskKpMapper.selectList(
                 new LambdaQueryWrapper<TaskKnowledgePointEntity>().eq(TaskKnowledgePointEntity::getTaskId , taskId));
 
+        // 批量查询知识点库存: Map<kpId, Map<questionType, stock>>，避免 N+1
+        Map<Long, Map<Integer, Integer>> kpStockMap = new HashMap<>();
+        Set<Long> kpIdSet = kpList.stream().map(TaskKnowledgePointEntity::getId).collect(Collectors.toSet());
+        if (CollUtil.isNotEmpty(kpIdSet)) {
+            for (Map<String, Object> row : taskKpMapper.batchCountByKpAndType(kpIdSet)) {
+                Long kpId = ((Number) row.get("kpId")).longValue();
+                Integer qType = ((Number) row.get("questionType")).intValue();
+                Integer stock = ((Number) row.get("stock")).intValue();
+                kpStockMap.computeIfAbsent(kpId, k -> new HashMap<>()).put(qType, stock);
+            }
+        }
+
         for (QuestionTypeEnum questionType : QuestionTypeEnum.values()) {
             if (QuestionTypeEnum.MULTIPLE_CHOICE.equals(questionType)) {
                 continue;
@@ -128,7 +144,8 @@ public class QuestionInventoryDomainServiceImpl implements QuestionInventoryDoma
             int passedCount = 0;
             for (TaskKnowledgePointEntity kp : kpList) {
                 kpCount++;
-                int currentStock = questionKpMapper.countAvailableByKp(kp.getId(), questionType.getValue());
+                int currentStock = kpStockMap.getOrDefault(kp.getId(), Collections.emptyMap())
+                        .getOrDefault(questionType.getValue(), 0);
                 boolean isEnough = currentStock >= watermark;
                 if (isEnough) {
                     passedCount++;
@@ -144,6 +161,15 @@ public class QuestionInventoryDomainServiceImpl implements QuestionInventoryDoma
         List<TaskKnowledgeClusterEntity> clusterList = clusterMapper.selectList(
                 new LambdaQueryWrapper<TaskKnowledgeClusterEntity>().eq(TaskKnowledgeClusterEntity::getTaskId, taskId));
 
+        // 批量查询簇库存: Map<clusterId, stock>，避免 N+1
+        Map<Long, Integer> clusterStockMap = new HashMap<>();
+        Set<Long> clusterIdSet = clusterList.stream().map(TaskKnowledgeClusterEntity::getId).collect(Collectors.toSet());
+        if (CollUtil.isNotEmpty(clusterIdSet)) {
+            for (Map<String, Object> row : taskKpMapper.batchCountByCluster(clusterIdSet)) {
+                clusterStockMap.put(((Number) row.get("clusterId")).longValue(), ((Number) row.get("stock")).intValue());
+            }
+        }
+
         // 按簇大小分组统计
         Map<Integer, Integer> sizeTotalMap = new HashMap<>();
         Map<Integer, Integer> sizePassedMap = new HashMap<>();
@@ -154,7 +180,7 @@ public class QuestionInventoryDomainServiceImpl implements QuestionInventoryDoma
             }
             int w = cluster.getClusterSize();
             int watermark = (int) Math.ceil(waterLine * w * questionTypeMap.get(QuestionTypeEnum.MULTIPLE_CHOICE.name()));
-            int currentStock = questionKpMapper.countAvailableByCluster(cluster.getId());
+            int currentStock = clusterStockMap.getOrDefault(cluster.getId(), 0);
             boolean isEnough = currentStock >= watermark;
 
             sizeTotalMap.merge(w, 1, Integer::sum);