Purpose The aim of this study was to investigate the effects of medial longitudinal arch mobility of paretic foot on balance and gait, and muscle activity in stroke patients. Methods Twelve stroke patients who were hospitalized at B hospital in Gyeonggido during the period from January 2022 to February 2022 were enrolled in this study. The subjects were divided into the medial longitudinal arch mobility training group of the paretic foot (n = 6) and the conventional physical therapy group (n = 6). The intervention was performed for 30 minutes a days, 5 times a weeks, and two weeks. The effectiveness of the intervention was assessed pre and postevaluated using the 10M Walk Test(10MWT), Berg Balance Scale(BBS), the BioRescue Platform(BRP) and the surface ElectroMyoGraphy(sEMG). Results As the result of the medial longitudinal arch mobility training on the paretic foot showed significantly improved balance and gait after exercise than before exercise in 10MWT, BBS and BRP. Conclusion Medial longitudinal arch mobility training of the paretic foot was effective in improving balance and gait speed through weightbearing on the paretic side in hemiplegic patients with stroke.