The invention discloses an assembly type slab column system adopting prestressed steel bars and inner core bending type buckling-restrained braces, and belongs to the field of building structure technology and structure seismic shock absorption. The system mainly comprises precast columns, precast floor slabs, precast wall boards, the prestressed steel bars for concrete, prestressed anchors, the inner core bending type buckling-restrained braces, heat-preservation and sound-insulation wall boards, external wall boards, gaps between the inner core bending type buckling-restrained braces and theheat-preservation and sound-insulation wall boards, column-wall connecting pieces and the like. The prestressed anchors arranged on the column corners, the prestressed steel bars for concrete are arranged in prestressed ducts in the precast floor slabs, and slab column joints are connected with the prestressed anchors through the prestressed steel bars for concrete. The inner core bending type buckling-restrained braces are arranged in the precast wall boards, the anti-lateral rigidity and bearing capacity of the structure are improved, and meanwhile the system energy-dissipating capacity isenhanced. Accordingly, all dry type construction is achieved, wet method operation is omitted, construction is easy, the prefabricated rate is high, the slab column joint is stable and reliable, and the structural system anti-seismic property is good.