The invention relates to a foot drop correction appliance provided with a supporting plate rear. The foot drop correction appliance is arranged on a prosthesis, and the foot drop correction appliance comprises a supporting plate, elastic straps and a foot sole fixing strap; the supporting plate sleeves in the back portion of a calf section of the prosthesis; and at the front side of the calf section of the prosthesis, the supporting plate is connected by virtue of the elastic straps; the foot sole fixing strap coaxially sleeves in the foot sole section of the prosthesis; the foot drop correction appliance is characterized in that a foot sole connecting plate extends from the lower part of the supporting plate; and the foot sole connecting plate is hinged on the foot sole fixing strap. According to the correction appliance, by designing the foot sole connecting plate which extends from the supporting plate and is hinged on the foot sole fixing strap together with the supporting plate, the foot sole of a patient who lifts a leg can automatically lift, so that the patient can feel ease to walk; and when the correction appliance is worn, the foot sole fixing strap can turn and can easily sleeve in the foot sole section of the prosthesis, so that the correction appliance is convenient and comfortable to wear, good in correction effect and high in user-friendly degree.