The aim of this study is to examine the relationship between proprioceptive sensory functions and body mass index parameters of football and volleyball players. 16 male football players and 16 male volleyball players between the ages 18 and 28, who have been certified players in a team and have not had a sports injury in the last five years, voluntarily participated in this research. In this study, body mass indexes (BMI) are figured out by measuring height and body weight (BW) and proprioceptive sense functions are measured by using TechnoBody PK-252 isokinetic balance system measurement device. Balance parameters are recorded as stability index (SI), average force variance (AFV) and average track error (ATE). In the study findings, it is observed that there is no meaningful correlation between the parameters for football players, though there is a negative meaningful correlation between BW and BMI values and ATE and SI values for volleyball players (p<0,05). Although there is not a difference between research groups’ proprioceptive sense functions and BMI values, there is a meaningful difference between groups’ body height and BW values in the course of comparing the groups. According to these results, it can be said that there is a correlation between some anthropometric data (BW, BMI) and proprioceptive sense functions. However, it is considered that the number of similar studies should be increased in order to reach a final judgement.