Provided is a knee supporter having a taping function capable of enhancing the walking performance of a wearer by improving the stability of the knee joint. A knee supporter (a knee joint bandage 100 or a knee joint supporter 200) comprises: a first anchor part 20 which is woven in a fabric having a loop face 21 of a touch fastener and is fastened around the thigh of a wearer; and a main body part 10 which is woven in a band-shaped fabric and composed of a second anchor part 11 (211) which is disposed at least below the popliteal region of the wearer, a first supporting part 12 which is disposed on one side of a part corresponding to the patella of the wearer, and a second supporting part 13 which is disposed on the other side of the part corresponding to the patella of the wearer to cross the first supporting part 11 (211) below the part corresponding to the patella of the wearer.