The purpose of this study was to find out the effect of yogasana practice on cardiorespiratory endurance and percentage of body fat among obese college women. To achieve the purpose of this study 40 college obese women who were studying in various colleges of Salem district during the academic year 2007-2008 were randomly selected as subjects. The age of the subjects were ranged from 17-25 years. The selected subjects were divided into two groups of twenty subjects each. Group I considered as experimental group who underwent yogasanas practice for twelve weeks and Group II considered as control who did not undergo any special training programme. The selected subjects were medically examined by a qualified medical personnel and certified that they were physically fit for undergoing the yogasanas practice. Prior to and after the training period the subjects were tested for cardiorespiratory endurance and percentage of body fat. It was concluded from the results of the study that both the training groups have improved cardiorespiratory endurance and percentage of body fat.