Provided is a knee supporter having a taping function whereby the stability of the knee joint can be enhanced and the wearer's walking performance can be improved. The knee supporter (a knee joint bandage (100) or a knee joint supporter (200)) comprises: a first anchor part (20) which is woven from a fabric provided with a loop face (21) of a hook and loop fastener and to be fastened around the wearer's thigh; and a main body part (10) which is woven from a band-shaped fabric and comprises a second anchor part (11, 211) to be disposed at least below the wearer's popliteal region, a first supporting part (12) to be disposed in one side of a part corresponding to the wearer's patella, and a second supporting part (13) to be disposed in the other side of the part corresponding to the wearer's patella crossing the first supporting part (12) below a part corresponding to the wearer's patella.