高校成人学生来源广、差别大,学籍也十分复杂。学籍检索是学籍管理中的主要工作,通过构造决策树来发现学籍信息中蕴含的分类规则,利用这些规则可以在学籍信息中快速准确地进行查询。提出了一种基于决策树的学籍信息查询方法,分析了决策树建立的过程,讨论了过度拟合的处理方式,此方法可以提高学籍信息查询的速度和质量。 College adult students wide source, the difference is big, student status is also very complicated. Student status retrieval is the main job in student status management. By constructing the decision tree, we can find the classification rules contained in the student status information, and use these rules to query the student information quickly and accurately. This paper presents a query method of student information based on decision tree, analyzes the process of establishing decision tree and discusses the handling of overfitting. This method can improve the speed and quality of student information query.