The purpose of this study was to determine the effect of body weight and height on the horizontal jump of young soccer players. This research is a quantitative research. The design used in this study uses the experimental method. The number of samples in this study were 34 young soccer players in West Sleman, namely SSB AMS Seyegan and SSB Seyegan United. Based on the research data above, the result was that the weight variable was 0.003 <0.05 while the height variable was 0.001 <0.05. Thus it can be concluded that the variables of weight and height affect the horizontal jump. It is understood that body weight and height have a significant influence on the results of the horizontal jump because the more ideal the Body Mass Index of an athlete will affect the results of the athlete's horizontal jump.