Water stop steel plate fixing device

The utility model relates to a water stop steel plate fixing device which comprises a clamping body, a fixing base and a clamping piece. The clamping body is fixed at the upper end of the guide wall template; comprising a clamping part matched with the upper end of a formwork in an inserted mode and a connecting part horizontally fixed to one side of the clamping part. The clamping portion is provided with a clamping area corresponding to the guide wall formwork, the connecting portion is provided with a connecting hole, the side wall, opposite to the connecting portion, of the clamping portion is provided with a jackscrew hole, and a jackscrew penetrates through the jackscrew hole to abut against the guide wall formwork. The fixing seat is fixed on the connecting part, the fixing seat comprises a connecting section corresponding to the connecting hole and a supporting section fixed at the lower end of the fixing seat, a supporting block is fixed on the supporting section, and the binding surface of the suppo