The invention discloses a plastic and concrete composite enhanced pipeline, which comprises a plastic pipe with two layers of pipe walls, wherein a cavity is formed between the two layers of pipe walls of the plastic pipe; and concrete is filled in the cavity. According to the plastic and concrete composite enhanced pipeline, a plastic pipeline and a concrete pipeline are tightly combined, so that the advantages of the plastic pipeline and the advantages of the concrete pipeline can be mutually complemented, and the pipeline has both the characteristics of the plastic pipeline and the advantages of the concrete pipeline; furthermore, the engineering manufacturing cost is reduced; and particularly in large pipeline engineering, the economical benefit is relatively obvious. The plastic and concrete composite enhanced pipeline is suitable to meet the demands of the conventional market; the ring rigidity of the plastic pipeline is greatly improved; the plastic and concrete composite enhanced pipeline has the strength of the concrete pipeline and the advantages of high anti-penetration performance, high corrosion resistance, light weight and convenience in construction of the plastic pipeline; the engineering manufacturing cost can be effectively reduced; and particularly in large pipeline engineering, the economical benefit is relatively high.