The research case company is an electronic component distributor. The purpose of this research is to find the problem of logistics management and search for the relevant information with the problem, through interview and the analysis of case company’s logistics data. In order to search for the relevant information of three suppliers’ purchase return condition, we use the association rule of data mining method. The research found that the case company has three logistics problems. First, suppliers were unable to reach the goods on time. Second, there is disagreement between stock up and purchase quantity. Third, returning goods of suppliers. The three problems may influence case company’s transporting procedure, or increase logistics and stock costs. The relevant information of problems would be mined in the research, in accordance with the three suppliers’ product type and purchase employee separately. The purchase department managers could improve logistics and purchase procedures by data mining results.