Abstract: The germination and physiological indices of Phaseolus coccineus seeds were investigated under artificial drought stress using 5%, 10%, 15%, 20% and 25% polyethylene glycol solutions (PEG-6000). The results showed that the effects of moderate drought stress on the germination process, germination rate, germination index and vigor index of P. coccineus seeds were not significant, these seed germination indexes were inhibited with the increase of drought stress, and the higher the drought stress, the most significant the decrease would be. SOD, CAT and POD activities were increased at first and then decreased with the increase of drought stress, the maximum values of SOD and CAT occurred at 10% PEG, and that of POD at 15% PEG. The curves of MDA and Pro content were unimodal.