Supporting device and supporting system for boundary beam formwork

According to the technical scheme, the supporting device for the boundary beam formwork comprises a supporting column, a supporting module is arranged on the top of the supporting column, the supporting module comprises a first supporting piece used for supporting the bottom face formwork of the boundary beam, and a second supporting piece used for supporting the bottom face formwork of the boundary beam is arranged on the top of the supporting column. The first supporting piece is provided with a first clamping piece and a second clamping piece, and the first clamping piece and the second clamping piece are matched to be used for clamping templates on the inner side and the outer side of the edge beam. The device further comprises a second supporting piece used for supporting the upper portion of the side beam outer side formwork, a mounting rod is arranged on the first supporting piece, the second supporting piece is fixed to the mounting rod and located above the first clamping piece, and one side of the f