The International Judo Federation (IJF) has 187 countries' members. All of the members held a lot of seminars related the judo skill improvement. Further, in order to assist judo player's performance, many judo coaches attempted to improve the training method of judo skills. The judo training skill divided into uchikomi, randori, and grip. In this paper, the author attempted to introduce the efficient methods of judo skill. Hopefully theses information would be utilized for the judo coaches, players, and all of the judo-related professionals.