A field experiment was undertaken to study the intercropping of important legume in pearl millet [Pennisetum glaucum (L.) Br. emend Stuntz] under hyper arid conditions during the kharif season, 2014 at Agronomy Farm, College of Agriculture, Bikaner. The experiment comprising 7 treatment combinations with three replications and the experiment was laid out in Randomized block design with combination of PM+MB intercropping systems (viz., 1:1, 1:2, 1:3, 2:1, 3:1, 2:2 and 3:3 row ratios) respectively. Results showed that maximum plant height of mothbean at harvest was recorded in PM+MB (1:3 row ratio) intercropping system. Maximum number of branches plant-1 at harvest was recorded in PM+MB (2:2 row ratio) as compared to rest of the treatments, which was at par with PM+MB (1:1, 1:2, 1:3) row ratio. However, pods plant-1 was obtained in PM+MB (1:3 row ratio). Further maximum seeds pod-1 of mothbean was recorded in PM+MB (1:3 row ratio). However, there was no significant influence of different intercropping systems on test weight and harvest index of mothbean. Maximum seed and straw yield were recorded with PM+MB (1:3) intercropping system. Further, highest biological yield was obtained by PM+MB (1:3) which was statistically at par with PM+MB (1:2) intercropping systems.