The purpose of the present paper is to investigate the characteristics of the physical fitness and motor ability of college student athletes, and to examine whether or not the athletes' physical and functional aspects vary, depending upon which training method is used, a relatively aerobic one or a relatively anaerobic one. We chose twenty test items concerned with the physique, physical fitness and motor ability of 64 baseball players of our college and tested them four times over the past three years. The results are as follows: The relatively aerobic power training method is significantly more effective than the relatively anaerobic one. Especially, the former contributes more to the lessening of back skinfold and to the increasing of back strength and side step ability than the latter.