diff --git a/doc/XXL-JOB官方文档.md b/doc/XXL-JOB官方文档.md
index e4db1a02..15b4945d 100644
--- a/doc/XXL-JOB官方文档.md
+++ b/doc/XXL-JOB官方文档.md
@@ -2577,6 +2577,7 @@ public void execute() {
 - 5、【重构】任务调度中心底层组件模块化拆分，移除组件单例以及静态代码逻辑，提升组件可维护性；
 - 6、【优化】任务调度中心调度锁逻辑优化，事务SQL下沉至Mapper层统一管理，并增加测试用例，提升代码可读性以及可维护性；
 - 7、【优化】调度组件日志完善，提升边界情况下问题定位效率；
+- 8、【修复】调度预读任务数量调整，改为调度线程池大小x10，降低事务颗粒度，提升性能及稳定性；
 
 - 7、【ING】UI框架重构升级，提升交互体验；
 - 8、【ING】调整资源加载逻辑，移除不必要的拦截器逻辑，提升页面加载效率；
diff --git a/xxl-job-admin/src/main/java/com/xxl/job/admin/scheduler/thread/JobScheduleHelper.java b/xxl-job-admin/src/main/java/com/xxl/job/admin/scheduler/thread/JobScheduleHelper.java
index b8d539e9..bdf1a621 100644
--- a/xxl-job-admin/src/main/java/com/xxl/job/admin/scheduler/thread/JobScheduleHelper.java
+++ b/xxl-job-admin/src/main/java/com/xxl/job/admin/scheduler/thread/JobScheduleHelper.java
@@ -51,8 +51,8 @@ public class JobScheduleHelper {
                 }
                 logger.info(">>>>>>>>> init xxl-job admin scheduler success.");
 
-                // pre-read count: treadpool-size * trigger-qps (each trigger cost 50ms, qps = 1000/50 = 20)
-                int preReadCount = (XxlJobAdminBootstrap.getInstance().getTriggerPoolFastMax() + XxlJobAdminBootstrap.getInstance().getTriggerPoolSlowMax()) * 20;
+                // pre-read count: treadpool-size * trigger-qps (each trigger cost 100ms, qps = 1000/100 = 100)
+                int preReadCount = (XxlJobAdminBootstrap.getInstance().getTriggerPoolFastMax() + XxlJobAdminBootstrap.getInstance().getTriggerPoolSlowMax()) * 10;
 
                 // do schedule
                 while (!scheduleThreadToStop) {