The purpose of this study is to examine effects of transcranial direct current stimulation (tDCS) on leg agility of normal adults. Methods: Subjects were 18 healthy male adults in their 20s, and they were distributed into them group (9) and tDCS application group (9). The tDCS was applied in 0.083 mA/cm 2 intensity for 15 minutes, and stimulating current during application was interrupted DC, with pulse duration of 2 msec, and interpulse interval duration of 5 msec. agility were measured through Burpee test and Sidestep test before and after tDCS application. Results: The reaction time in muscle contraction showed significant differences interaction effects between group and time in rectus femoris, tibialis anterior, semitendinosus, and gastrocnemius muscles. Burpee and sidestep tests all showed significant differences interaction effects between group and time. Conclusions: The reaction time of muscle contraction after tDCS was reduced in all muscle. The numbers of sidestep and Bupee test after tDCS were increased. Therefore, the results of this study suggest that tDCS application might help increase lower limb agility.