Steel pipe pile forming structure and steel pipe pile construction method

The invention provides a steel pipe pile forming structure and a steel pipe pile construction method.The steel pipe pile forming structure comprises a jacket arranged at the set position of a pile foundation of a riverbed or a seabed, the jacket comprises a plurality of outer sleeve steel pipes, the bottom ends of the outer sleeve steel pipes abut against a bare rock layer of the riverbed or the seabed, and a distributive girder platform is arranged at the tops of the outer sleeve steel pipes; the outer steel pipe guides the steel pipe pile, the bottom end of the steel pipe pile is inserted into a bare rock layer, and a concrete anchor pile is arranged between the bottom end of the steel pipe pile and the bare rock layer. The concrete anchor piles are arranged between the steel pipe piles and the riverbed or the seabed, the concrete anchor piles form built-in points of bed rock below the steel pipe piles, stable supporting of the steel pipe piles is ensured, the structure is easy to construct and low in const