The present invention relates to a functional brain-computer interface-based electrical stimulation therapy device for lower body function and walking which allows a patient to watch a video for training lower body and walking of a monitor so that the patient can focus on getting same training. At this time, by detecting EEG of the patient, detecting brain wave concentration indices from the detected EEG and allowing a FES unit to operate based on the brain wave concentration indices, the device allows the patient to get training for lower body and walking by the will of the patient. The present invention, in an operation method of the functional brain-computer interface-based electrical stimulation therapy device for lower body function and walking, comprises: a video output step; a step of detecting brain wave in a frequency range; a step of detecting brain wave concentration indices; a step of comparing the brain wave concentration indices and threshold; and a step of producing FES stimulating signals.
- Brain computer interface based functional electrical stimulator