The foundation requirement of light steel movable building is far lower than that of traditional steel structure. On the basis of the same structural unit, part of the natural foundation and part of the artificial foundation shall not be adopted, nor more than two categories and one larger soil property difference. Bearing layer, when the pile end of the steel structure foundation slab or place of the high-rise building lies close to or inclined to the top surface, the appropriate foundation or pile length shall be increased, Make the foundation or the bottom of the pile all in the same inner side to avoid possible uneven settlement.