Cantilever cast-in-place supporting system structure of bridge panel

The utility model discloses a bridge deck cantilever cast-in-place supporting system structure which comprises a bridge box body, a first supporting plate and a second supporting plate, the first supporting plate and the second supporting plate are arranged on the two sides of the bridge box body, a plurality of rows of supporting structures are arranged at the top end of the bridge box body, each supporting structure comprises a reserved groove, and the reserved grooves are formed in the top end of the bridge box body. A supporting lever is arranged in the reserved groove and penetrates through the interior of the reserved groove. According to the bridge panel cantilever cast-in-place supporting system structure, the supporting plates on the two sides can be preliminarily supported through the supporting levers, the stability of the supporting plates is improved, and when concrete is poured on the surfaces of the supporting plates, the middles of the supporting levers abut against the top end of a bridge box