diff --git a/services/ad-platform-service/src/main/java/com/baiye/service/AssignDataService.java b/services/ad-platform-service/src/main/java/com/baiye/service/AssignDataService.java
index cde0dc85..261bec25 100644
--- a/services/ad-platform-service/src/main/java/com/baiye/service/AssignDataService.java
+++ b/services/ad-platform-service/src/main/java/com/baiye/service/AssignDataService.java
@@ -1,5 +1,6 @@
 package com.baiye.service;
 
+import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.map.MapUtil;
 import cn.hutool.core.util.NumberUtil;
 import com.baiye.constant.DefaultNumberConstants;
@@ -16,7 +17,6 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
-import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.stream.Collectors;
 
 /**
@@ -31,14 +31,13 @@ public class AssignDataService {
         int size = distribution.getDeptIds().size();
         List<Long> deptIds = distribution.getDeptIds();
         List<Double> weights = distribution.getWeights();
-        CopyOnWriteArrayList<String> resourceList =
-                Lists.newCopyOnWriteArrayList(distribution.getResourceList());
+        List<String> resourceList = distribution.getResourceList();
         // 数据打乱
         Collections.shuffle(resourceList);
         // 去除重复数据
-        CopyOnWriteArrayList<String> copyOnWriteArrayList =
-                Lists.newCopyOnWriteArrayList(Sets.newHashSet(resourceList));
-        int resourceSize = copyOnWriteArrayList.size();
+        List<String> arrayList =
+                Lists.newArrayList(Sets.newHashSet(resourceList));
+        int resourceSize = arrayList.size();
         // 集合求和
         double sum = weights.stream().mapToDouble(Double::doubleValue).sum();
         if (sum != DefaultNumberConstants.ONE_HUNDRED) {
@@ -48,7 +47,7 @@ public class AssignDataService {
         Map<Long, Double> deptMap =
                 deptIds.stream().collect(Collectors.toMap(key -> key, key -> weights.get(deptIds.indexOf(key))));
         Map<Long, Double> longDoubleMap = MapUtil.sortByValue(deptMap, Boolean.FALSE);
-        CopyOnWriteArrayList<String> value;
+        List<String> value;
         List<DistributeResponseDTO> list = new ArrayList<>();
         DistributeResponseDTO distributeResponseDTO;
         int num = DefaultNumberConstants.ZERO_NUMBER;
@@ -62,22 +61,25 @@ public class AssignDataService {
                         Double.valueOf(DefaultNumberConstants.ONE_HUNDRED), DefaultNumberConstants.TWO_HUNDRED);
                 int count = (int) Math.floor(NumberUtil.mul(resourceSize, div));
                 if (count == DefaultNumberConstants.ONE_NUMBER) {
-                    int middle = copyOnWriteArrayList.size() / DefaultNumberConstants.TWO_NUMBER;
-                    value = Lists.newCopyOnWriteArrayList(Lists.newArrayList(copyOnWriteArrayList.get(middle)));
+                    int middle = arrayList.size() / DefaultNumberConstants.TWO_NUMBER;
+                    value = Lists.newArrayList(arrayList.get(middle));
                     distributeResponseDTO.setResponseList(value);
                     distributeResponseDTO.setDeptId(key);
                     list.add(distributeResponseDTO);
-                    copyOnWriteArrayList.remove(middle);
+                    // copyOnWriteArrayList.remove(middle);
+                    arrayList = CollUtil.subtractToList(arrayList, value);
                     continue;
                 }
-                value = Lists.newCopyOnWriteArrayList
-                        (copyOnWriteArrayList.subList(DefaultNumberConstants.ZERO_NUMBER, count));
+                value = Lists.newArrayList
+                        (arrayList.subList(DefaultNumberConstants.ZERO_NUMBER, count));
                 distributeResponseDTO.setResponseList(value);
                 distributeResponseDTO.setDeptId(key);
                 list.add(distributeResponseDTO);
-                copyOnWriteArrayList.removeAll(value);
+                // 并集方式删除元素
+                arrayList = CollUtil.subtractToList(arrayList, value);
+                // copyOnWriteArrayList.removeAll(value);
             } else {
-                value = Lists.newCopyOnWriteArrayList(Lists.newArrayList(copyOnWriteArrayList));
+                value = Lists.newCopyOnWriteArrayList(Lists.newArrayList(arrayList));
                 distributeResponseDTO.setResponseList(value);
                 distributeResponseDTO.setDeptId(longDoubleEntry.getKey());
                 list.add(distributeResponseDTO);
diff --git a/services/ad-platform-service/src/test/java/com/baiye/SettingTest.java b/services/ad-platform-service/src/test/java/com/baiye/SettingTest.java
index 2f71238d..f1e89c0e 100644
--- a/services/ad-platform-service/src/test/java/com/baiye/SettingTest.java
+++ b/services/ad-platform-service/src/test/java/com/baiye/SettingTest.java
@@ -36,7 +36,7 @@ public class SettingTest {
         List<String> strings = Lists.newArrayList("a", "b", "c", "d","e","f","g","h","i","j");
 
         List<Long> longs = Lists.newArrayList(12360L, 12361L,12362L,12363L,12364L,12365L);
-        List<Double> doubleList = Lists.newArrayList(40.0, 20.0,10.0,15.0,10.0,5.0);
+        List<Double> doubleList = Lists.newArrayList(16.66, 16.66,16.66,16.66,16.66,16.7);
         distributeDTO.setResourceList(strings);
         distributeDTO.setWeights(doubleList);
         distributeDTO.setDeptIds(longs);