Fabricated building supporting seat

The invention is suitable for the technical field of fabricated buildings, and provides a fabricated building supporting seat which comprises a base plate and further comprises a supporting structure, the supporting structure comprises a supporting seat body and a mounting bottom plate, a positioning column is arranged at the top of the supporting seat body and connected with a fabricated wallboard through a connecting assembly, and the mounting bottom plate is arranged on the supporting seat body. Positioning holes are respectively formed in two ends of the mounting bottom plate; the clamping assembly comprises an adjusting seat, the adjusting seat comprises a top disc and a bottom disc, the top disc and the bottom disc are connected through a plurality of arc-shaped connecting plates, the bottom disc is connected with the interior of the supporting seat through a first spring, and a plurality of adjusting rods are annularly mounted on the bottom disc; a clamping rod is rotationally mounted at the end, away