In the course summary statement which the school stipulates, the study effect of basic course of the lower grade will influence the study effects of other professional courses in the future instinctively. The traditional ways mostly suppose the relation among each subject by way of statistics, intensity of relation while and then verifying by assaying. If suppose the relation not listed can't assay its relation. In this paper, we use fuzzy association rules to mining student's score database as the materials and prospects, the ones that analyses in subject close the rule of connecting, expect to find out subject that has influence each other, the ones that regarded doing as and tied and arranged for course and teacher to consult while giving lessons were accorded with. Strengthen the basic subject teaching effect with influence, establish student's study result of other professional courses in the future.