Supporting structure in foundation pit

The utility model relates to the technical field of foundation pit supporting, in particular to a foundation pit inner supporting structure which comprises a supporting frame, a reinforcing rod is fixedly connected to one side of the supporting frame, a supporting rod is rotationally connected to one side of the supporting frame, and a supporting plate is rotationally connected to the end, away from the supporting frame, of the supporting rod. The end, away from the supporting rod, of the supporting plate is fixedly connected with an anti-slip strip, and one side of the supporting plate is fixedly connected with a connecting plate. Compared with the prior art, the supporting frame has the advantages that the reinforcing rod is fixedly connected to one side of the supporting frame, the supporting rod, the supporting plate, the anti-slip strip, the fixing cone, the fixing plate and the limiting plate are arranged in a matched mode, the supporting frame abuts against the inner wall of the foundation pit, collaps