Abstract: On the basis of the theory of association rule data mining algorithm, this thesis analyzes the merits and defects of classic association rule algorithm——Apriori algorithm, then uses a new algorithm——Power Set to ameliorate the defects of Apriori. At last, the PS algorithm is applied to the automotive parts failure analysis system. It is meaningful to shorten the time of failure feedback and elimination.

Key words: association rule, data mining, Apriori algorithm, PS algorithm, failure analysis