The purpose of this study was to compare the effects of single-versus three (3)-set resistance training on muscular strength and muscular power among untrained men. Thirty-six untrained men were recruited in this study. Participants were randomized into 3 groups; single set (n = 12, age = 20.92 ± 0.79), 3 set (n = 12, age = 21 ± 0.74), and control group (n = 12, age = 21 ± 0.67). Muscular strength was measured by bench press and squat performance. Static strength was measured by handgrip strength test and muscular power by the vertical jump test. The intervention groups were engaged in 6 weeks of training three times per week. Common exercises were performed to the point of achieving muscular failure for every set. Significant improvement was recorded in muscular strength and muscular power performances, (p \ 0.05) for both the single-and three-set groups. However, no significant differences were found for all the test performances between the invention groups (p [ 0.05). In conclusion, single-set and three-set resistance trainings showed similar training effects on muscular strength and muscular power among untrained men.