Provided is an elbow joint supporter which can improve the stability of the elbow joint, reduce the strain on the elbow joint and reduce the load on the biceps brachii muscle tendon. The elbow joint supporter (10) comprises a first anchor section (2) formed by wrapping one end of a tubular knitted fabric around the wearer's upper arm to tighten said part with the tubular knitted fabric, a second anchor section (3) formed by wrapping the other end of the tubular knitted fabric around the wearer's forearm to tighten said part with the tubular knitted fabric, and a substantially X-shaped knitted supporting section (4) intersecting at the wearer's cubital fossa, two ends of the X-shaped knitted fabric each being joined to the first anchor section (2) and the other two ends of the X-shaped knitted fabric each being joined to the second anchor section (3)； so as to support the wearer's elbow joint, wherein the stretch resistances, in the circumferential direction of the tubular knitted fabric, of the first anchor part (2) and the second anchor part (3) are larger than the stretch resistance, in the circumferential direction of the tubular knitted fabric, of a base fabric section (1), and the stretch resistance, in the length direction of the tubular knitted fabric, of the supporting section (4) is larger than the stretch resistance, in the length direction of the tubular knitted fabric, of the base fabric section (1).
