A cuff cover configured to cover a cuff structure in a biological information measurement device, the biological information measurement device including the cuff structure including one or more cuffs and electrodes, and an attachment unit, the biological information measurement device configured to measure blood pressure value and an electrocardiographic waveform of a human body attached to the human body by the attachment unit, the cuff cover including a covering portion formed of a non-conductive material, the covering portion configured to cover the cuff structure, a mounting portion configured to mount the covering portion to the cuff structure, and an energization assisting unit provided in the covering portion, the energization assisting unit configured to assist energization between each of the one or more electrodes included in the cuff structure covered with the covering portion and the human body when the biological information measurement device is attached to the human body.