UPVC pipe concrete column supporting system for basement roof post-cast strip

The utility model discloses a UPVC (Unplasticized Polyvinyl Chloride) pipe concrete column supporting system for a basement roof post-cast strip, which belongs to the technical field of constructional engineering construction and comprises a plurality of UPVC pipe concrete column structures fixed on two sides of the post-cast strip, and each UPVC pipe concrete column structure comprises a base, a top support and a UPVC pipe die; the base is fixed on a basement bottom plate, and a mounting hole is formed in the base; the top support is fixed on a basement top plate, and a positioning hole is formed in the top support; the UPVC pipe die is vertically arranged, the upper end of the UPVC pipe die is sleeved in the positioning hole, and the lower end of the UPVC pipe die is sleeved in the mounting hole; the UPVC pipe mold comprises two UPVC pipe half molds, and the two UPVC pipe half molds are symmetrically arranged and detachably connected. The supporting system is simple in structure and not prone to deformation