The study aims to determine the effects of 8-week dance-based aerobic training in body composition features and balance ability in middle age people aged between 35-55 years old of both ages. The study consists of an experimental method of testing the effects of applied training by comparing the control and experimental sample groups which contain 20 people aged 35-55 years old. The measurement tools consist of body composition features, balance ability tests, and dance-based aerobic training which are determined in certain sections of the study. The data analysis has been tested by using Shapiro-Wilks and Kolmogorov-Smirnov tests, Two Way Repeated Measure ANOVA Box’s Test of Equality of Covariance Matrices. The results of the study have shown a significant effect of dance-based aerobic training on body composition features such as body mass index, fat percentage, etc (0.05). Practising dance-based aerobic training effects positively the body mass index, fat percentage, muscle mass, etc. However, the same training effects on the balance ability seem to be not significant, and the reason for this is considered the short time of application of the program. In order to see the effects of this training on balance ability there needed a longer time of application of the program. Also, this kind of training has a tendency to be more suitable for middle age people because of the characteristics of the training which seem to not have a potential risk of injury.