Plate descending and formwork lifting supporting structure for building sinking type floor construction

The utility model relates to the technical field of building construction, in particular to a plate descending and formwork hanging supporting structure for building sunken type floor construction. The plate descending and mold hanging supporting structure comprises a base plate, a supporting frame, a bottom plate and a connecting piece. The bottom of the supporting frame is connected with the base plate. The supporting frame defines a containing area for containing the bottom plate on the base plate. The bottom plate is connected with the supporting frame through a connecting piece. And the bottom plate is suspended above the base plate. And a channel for injecting concrete is formed between the bottom plate and the base plate. And the connecting pieces are arranged along the edge of the bottom plate. One end of the connecting piece is connected with the supporting frame. And the other end of the connecting piece is connected with the bottom plate. The middle of the connecting piece is provided with a suppor