本文根据数据挖掘中关联规则的性质以及高校成绩管理数据库的自身特点。在经典关联规则算法Apriori算法的基础上提出了一种改进的算法A++算法，并利用该算法对学生成绩管理数据库进行了关联规则挖掘，得到了隐含在数据库中的有用信息。-Based on data mining association rules in the nature of the college performance management database to its own characteristics. In the classic Apriori algorithm for association rule algorithm based on an improved algorithm A++ Algorithm, and using the algorithm of student achievement management of database for mining association rules, have been implied in the database of useful information.