Reinforced spiral pipe has high circular stiffness and good axial flexibility, which makes the pipe system flexible. When the soil subsidence is uneven, the groundwater level rises, the local ground load is too large, and the earthquake and other disasters occur, the flexible deformation can be used to adapt the pipeline to this situation, so that the connection point will not leak or break due to large stress and deformation. The pipe combines all the advantages of ordinary non-pressure plastic pipe and the strength of steel ribs, which can meet different engineering requirements, and can be widely used to transport corrosive or non-corrosive non-pressure liquid.