Software reuse is to reduce software develop cost and to improve software quality. But the general understanding of existing software is required in order to software reuse. Otherwise It is more efficient to newly software developed.In this study, we proposed an association analysis model for Software Reuse success using Apriori algorithm. We analyzed success factor and column's association of software reuse in software reuse dataset. The evaluation results showed that software reuse is successful when Rewards.Policy=no, Type of Software production=product-family, Human Factors=yes, Repository=yes, Top Management Commitment=Yes. And we showed that six columns have association with each other.