1. IntroductionFor last few years, 참이슬 of JinRo had a 50% market share in domestic soju market. JinRo didn`t have a equal share in whole nation but JinRo led a soju market in Seoul and capital area. Like this, JinRo is the market leader in soju market. 참이슬`s the biggest rival is the 처음처럼. 처음처럼 broke 20˚ that maginot line of soju market and brotught low alcohol degree trend. 처음처럼 went straight to second place in one year. As soon as 처음처럼 was launched, It caused tremendous popularity. JinRo launched the 참이슬Fresh because of 처음처럼‘s trace and implemented aggressive marketing.Recently, Low lcohol degree trend is forming because of interest in health, change of drinking culture, rise of woman consumer. Also, this interest increase about water, additives, raw material. The age group of soju is distributed evenly and the twenties and thirties are the biggist consumer group. Especially, the twenties received attention and JinRo is making effort that raise brand image, awareness like various event, promotion. Like this, Jinro maintained first place for few years in fierce competition and want to consolidate the strongest positon by practicing marketing plan that keep rapid growth competitor in check.