The present study was progressed to examine an effect of ballet class participation on melancholy of military men and explore an effect of dance education. The research samples were 30 soldiers that were taken 12 weeks ballet class and working at military units in Gyeonggi-do province, and they were composed of two groups, the problem soldier 13 peoples and the ordinary soldier 17 peoples. In order to draw a result, statistics program SPSS 21.0 was used, and also diverse statistical methodologies such as exploratory factor analysis, reliability analysis, correlation analysis, frequency analysis and paired t-test were employed. Ultimate conclusions of the present study are as follows. Firstly, in the both of the problem soldier and the ordinary soldier, there was statistically a significant reduction in interest loss and physical symptom that were sub-factors of melancholy. Secondly, in the both of the problem soldier and the ordinary soldier, there was statistically a significant reduction in negative emotion that was sub-factor of melancholy. Thirdly, in the both of the problem soldier and the ordinary soldier, there was statistically a significant reduction in melancholy emotion that was sub-factor of melancholy. Lastly, in the both of the problem soldier and the ordinary soldier, there was statistically a significant reduction in entire melancholy. In conclusion, on the basis of the research result, we ultimately could confirm that 12 weeks ballet class had a positive effect on reduction of melancholy of military men.