Fabricated building supporting seat structure

The utility model provides an assembly type building supporting seat structure which comprises a bottom plate and a lifting plate, a lifting plate is arranged on one side of the lifting plate, a mounting shell connected through a bolt is arranged on the bottom plate, a mounting cylinder is arranged on the mounting shell, a lifting cylinder at the bottom of the lifting plate is arranged in the mounting cylinder, a threaded cylinder is fixed in the lifting cylinder, and the threaded cylinder is connected with the lifting plate. A first mounting frame and two groups of second mounting frames are arranged in the mounting shell, a rotatable first mounting wheel is arranged in the first mounting frame, a screw rod on the first mounting wheel is arranged in the threaded cylinder in a penetrating manner and is in threaded connection with the threaded cylinder, a worm wheel is arranged at the bottom of the first mounting wheel, and rotatable second mounting wheels are arranged in the second mounting frames; the two se