The aim of this investigation is to compare velocity and power variables during loaded-squat jump (SJ[subscript Loaded]) exercise of national athletes dealing with different sports branches and to identify whether velocity and power parameters become different or not according to branches. In accordance with this purpose, a total of 36 national athletes (age: 20.3 ± 1.68 years; height: 173.5 ± 6.46 cm; weight: 72.3 ± 10.29 kg) composed of 12 wrestlers (age: 19.5 ± 0.90 years; height: 172.3 ± 6.19 cm; weight: 75.5 ± 13.9 kg), 12 arm wrestlers (age: 20.5 ± 2.02 years; height: 174.7 ± 4.76 cm; weight: 72.6 ± 8.31 kg) and 12 kickboxers (age: 20.7 ± 1.81 years; height: 173.5 ± 8.29 cm; weight: 68.9 ± 6.94 kg) dealing with different sports branches have voluntarily participated in this study. For identifying velocity and power parameters, SJ[subscript Loaded] exercise was executed with an external load that corresponds to 40% of body weights of the athletes by utilizing an isoinertial velocity transducer (T-Force dynamic measurement system) and values of mean velocity (MV), mean propulsive velocity (MPV), peak velocity (PV), mean power (MP), mean propulsive power (MPP) and peak power (PP) were determined. All data analyzes were performed in the SPSS 16.0 statistical program. Firstly, in order to analyze data, it was determined that the data indicated normal distribution by looking at the Shapiro-Wilk coefficient regarding the normality of the distribution of the data. Therefore one-way analysis of variance (One-way ANOVA) was utilized to identify statistical significant differences among athletes competing in different branches with regard to the velocity and power variables during the SJ[subscript Loaded exercise. According to analyze results, no statistical significant difference wasn't seen among branches with regard to MV [f (2.33) = 1.306], MPV [f (2.33) = 2.195], PV [f (2.33) = 2.242], MP [f (2.33) = 1.225], MPP [f (2.33) = 2.787] and PP [f (2.33) = 2.607] parameters during SJ[subscript Loaded] exercise (p>0.05). The velocity and power parameters obtained in the SJ[subscript Loaded] exercise don't differ according to the branches.