The invention provides a construction method of a large-diameter long prefabricated pipe pile. A pile tip of the prefabricated pipe pile is sunken into soil, a pile body of the prefabricated pipe pileis split into a plurality of hollow pile body sections, non-fixed connection between the pile tip and the pile body as well as between every two adjacent pile body sections in the pile body is achieved through sleeves, the pile tip and all the pile body sections are sunken stepwise through a push rod from bottom to top, thus, the prefabricated pipe pile to is gradually sunken, the number of the connected pile body sections is increased along with continuous sinking of the prefabricated pipe pile, after the prefabricated pipe pile reaches the construction depth requirement, the push rod is recovered, and concrete is poured to fill gaps between the pile body sections. The invention further provides a prefabrication pipe pile prepared through the method. According to the technical scheme, the pile end resistance borne by the pile tip is separated from the pile side resistance borne by the pile body, the large pile side resistance borne by the whole pile body is divided into a plurality of small pile side resistance, limitation of existing equipment in the construction depth of the prefabricated pipe pile is effectively avoided, and the equipment is utilized to the greatest extent.