Joint protector for physical training

The joint protector for physical training comprises a protector assembly and a supporting assembly, the protector assembly comprises a cloth pad, two connecting belts with one ends fixed to the outer wall of the cloth pad and four through holes formed in the cloth pad, the two connecting belts are located on the outer wall of the cloth pad and placed in a staggered mode, first hook-and-loop fastener thorn faces are arranged on the inner walls of the connecting belts, and second hook-and-loop fastener thorn faces are arranged on the inner walls of the connecting belts. A first hook-and-loop fastener rough surface is arranged on the outer side of the cloth pad and located on the same horizontal line with the connecting belt, the supporting assembly comprises an inner pad arranged on the inner side of the cloth pad and three sets of vertical rubber strips fixed to the inner side of the inner pad and evenly distributed, and air holes coincident with the through holes are formed in the inner pad. According to the