The research problem in this research was VO2 Max very influence to the physical activities particularly volleyball sport. The aim of this research was to know the ability degree of Maximum Oxygen Volume (VO2 Max) UKM male volleyball PJKR UNTAN 2012. This research used descriptive quantitative method. The population of this research was all of the male students who were active in UKM volleyball PJKR UNTAN with number 13 students. The sample was taken by using surfeited sampling technique. The measurement technique was done with multistage fitness test to measure the ability of VO2 Max. Based on the research finding, it could conclude that; there are moderate criterions 69.2% and fewer criterions 30.8%. So, the biggest analyses score to the ability degree of Maximum Oxygen Volume (VO2 Max) UKM male Volleyball PJKR UNTAN 2012 was in sufficient category with number 69.2%