A femoral support member (30) comprises a stiff frame (31) made of an elongated rectangular plate member curved so as to extend along an outer side and front of a femoral part of a wearer and a flexible belt (32) extending along a rear of the femoral part. The femoral support member allows a walking assistance force to be transmitted to the femoral part of the wearer in a favorable manner. Also, the pressure and stress on the wearer are minimized, and a favorable fit can be achieved.