The purpose of this study is to investigate the driving distance improvement effect and the level of satisfaction by wearing functional auxiliary wear with 30 golfers who have more than 6 months of experience and can use a driver among golf clubs. GDR equipment (Golfzon, America) was used in indoor golf driving range to measure the effect of improving the driver driving distance, and 3 balls that entered the target area in 10 swings both before and after wearing were recognized as records, averaged and used as data. In addition, after the measurement was completed, a questionnaire was filled out to understand the subjective fit, quality, effect, purchase intention, and level of satisfaction of the subjects before and after wearing functional auxiliary wear.BR 1. Compared to before wearing, Carry Distance (CD) increased by 15.5m, Total Distance (TD) by 15.6m, and Ball Speed (BS) by 2.6m/s on average, respectively, and CD, TD and RS increased on average.BR 2. In the results of the questionnaire, in terms of the level of satisfaction for functional auxiliary wear, there were 90% of the positive responses of ‘Generally satisfactory compared to before wearing’. BR Based on the above results, the effectiveness of functional auxiliary wear has been proven for all golfers currently training, and the wearing level of satisfaction is high, so it is expected that it will function as a golf swing auxiliary tool. In addition, it is considered that a follow-up study to measure the electromyography of professional golfers is needed in the future.