Every three days and eight days in the lunar calendar. In Xiaoqiu Town, Tongchuan, in order to better facilitate the masses, the market date is every three to eight days of the lunar calendar. Tongchuan is located in the geographical center of China and the central part of Shaanxi Province, connecting the northern Shaanxi energy base and the xi metropolitan area. It is an important node city of Guanzhong Plain urban agglomeration and Silk Road Economic Belt.