The purpose of this study was to suggest actual strategy increasing sport competitiveness and added value of sport teams through investigating how professional sport team image factors improving corporate image and enhancing corporate marketing activity to affect buying factors of licensing products, and how to affect team loyalty. To complete this purpose, researchers chose the subjects 300 spectators living in Gwangju and Daegu in professional sports games in 2013 with convenience sampling method excluding insufficient respondents. Reliability test of the measuring instrument indicated the Cronbach`s α between .976 and .728, which was an adequate value for the objective of the study. Multiple regression analysis was performed for practical data analysis, and was able to acquire the following results. First, high quality, trusty, certainty, and interest of team image had distinct influence in product character and purchase circumstance. Second, high quality, trusty, certainty of team image had distinct influence in behavioral loyalty and attitudinal loyalty. Third, product character of buying factors and purchase circumstance had distinct influenced in behavioral loyalty and attitudinal loyalty. As a result of findings, because sport team image affected buying factors and team loyalty, operating sport teams was competitive and corporate could get profit through selling licensing products. To increase team image, the team needed to find and bring up local excellent athletes, show more positive team image through social responsibility activity to the fans. In addition, corporate need to produce licensing products emphasizing fuctionality, design, color, and price on demand of customers. Discount tickets sales and simplifying the rout of selling licensing products also could be good strategy.