The objective of the study to find out the effects of 6 weeks circuit training on heart rate of badminton players. For the purpose of the present study thirty (N = 30) subjects was randomly selected from different levels of badminton players of TMU Moradabad. The age of the subjects for the study was ranged from 18-25 years. The subjects was divided into two groups, experimental group (NE = 15) and control group (NC = 15). To measure the heart rate, total number of heart beats per minute was recorded. To determine the effect of 6 weeks circuit training on heart rate of badminton players, Analysis of Co-Variance (ANCOVA) was used. The level of significance was set at 0.05. The results of the study shows that 6 weeks circuit training have significant effect on heart rate of badminton players.