Purpose The purpose of this study was to investigate the effects of neurodevelopmental treatment (NDT) in combination with lowfrequency repetitive transcranial magnetic stimulation (LFrTMS) on balance, gait, and cortical activity in chronic stroke patients. Methods In this study, 6 patients with chronic stroke were divided into 3 patients in the LFrTMS group combined with neurodevelopmental treatment (NDT) and 3 patients in the shamrTMS group combined with NDT. In this study, the MTDbalance system, AMTI, MEP amplitude, and MEP latency were evaluated before and after the intervention. Results First, there was a significant difference in weight bearing rate and foot pressure evaluation pre and post intervention in the study group (p<0.05) (p<0.01). Second, there was a significant difference in the study group as a result of the ground reaction force evaluation (p<0.05). Third, there was a statistically significant difference in the MEP latency of the study group as a result of cerebral cortical activity evaluation (p<0.05). Conclusion The result suggests that LFrTMS combined with NDT were found to be effective in improving balance and gait ability and cerebral cortical activity in chronic stroke patients.