The utility model discloses a lightweight steel wall body connection structure basic with building, including the heel post, the heel post is the base member of floor corner, and the upper surface ofheel post pegs graft and to have the web, the flange plate has all been reserved to the both sides of web, and the both sides that are close to the web between two flange plates have all welded the second fixed plate, the last skin weld of second fixed plate has hydraulic cylinder, and the department welding of hydraulic cylinder's top end opening has an oil seal ring, oil seal ring's inner circlesliding connection has the tubbiness ejector pin, and the tubbiness ejector pin is hollow structure, open the bottom of tubbiness ejector pin has the screw, and the spiro union has a damping tube inthe screw, the bottom outer wall welding of tubbiness ejector pin has piston ring alive. The utility model discloses in, the peripheral cystosepiment of heel post and H shaped steel backbone, the normal operating of device has been guaranteed to the inside that can avoid damping device in the casting concrete that overflows, puies forward the bradyseism effect of top grafting head department.