The System of Tiger's Skin was an important political system of Tubo Dynasty. The skin was awarded to high-level Zhang Lon, frontier generals and brave soldiers (Tiger Soldiers) in different grade according to the battle military merit. With the continuous expansion and frequent exchange with the surrounding areas, the tiger's skins produced in Tubo could no longer meet the clothing needs of a large number of personnel with military merit. Although tiger's skin was the main form of certificate, it was not limited to tiger's skin, and the sources of tiger's skin were thus diversified. Tiger's skins had become one of the contents of economic and cultural exchange between Tubo and Its neighboring areas.