The aim of this study was to investigate the effect of moderate rhythm of music on perceived exertion and heart rate during different intensities of endurance training in young male athletes. 10 male athletic students (mean + SD age 21.6±2.60 years) were voluntarily selected. The present study was conducted in a crossover design with and without music. The results showed no significant difference between the two stages in heart rate during the warm-up phase (P>0.05). During training with 60-70% of Maximal Heart Rate and moderate rhythm of music, heart rate and perceived exertion significantly decreased as compared to the condition without music (P<0.05). During training with the highest intensity, the perceived exertion and heart rate showed a slight reduction but it was not significant (P>0.05). The findings showed that moderate rhythm of music balances the effects of training intensity on heart rate and perceived exertion, but it does not have a great effect in higher intensities.