The Purpose of the present study was to find out the effects of circuit training and circuit weight training on Muscular strength endurance. To achieve this purpose, thirty men kabaddi players from Alagappa University College of physical education, karaikudi, were randomly selected as subjects. The age of the subjects ranged between 21 to 28 years. The selected subjects were divided into three groups of ten subjects each. The experimental group – 1(n=10 CT) underwent circuit training, the experimental group – 2 (n = 10 CWT) underwent circuit weight training and control group-3 (n= 10, CG) did not participate in any special training programme apart from their regular activities. The data was collected at prior to and after the training programme of nine weeks. Muscular strength endurance was chosen as a criterion variable. The analysis of co variance (ANCOVA) was used to analyze the data. The results of the study showed that the Muscular strength endurance was significantly improved due to the circuit and circuit weight training.