The invention provides a novel prefabricated threaded tubular pile and a construction method thereof, and relates to the technical field of buildings. The novel prefabricated threaded tubular pile comprises a tubular pile body and a threaded on the outer side of the prefabricated threaded tubular pile body. The width of the thread ranges from 2 cm to 30 cm, and the thickness of the thread ranges from 2 cm to 6 cm. The thread space ranges from 10 cm to 80 cm, and the spiral included between the thread and the horizontal plane ranges from 10 degrees to 40 degrees. During construction, the prefabricated threaded tubular pile is transported to the site section by section, piling is carried out after positioning, the pile sections are connected in a welding manner, and finally a welding connection opening is reserved at the pile head. Due to the fact that the side thread is designed, the rigidity of a foundation pile is improved, and the bending resisting and shear resisting capacity of the foundation pile is improved. During construction, a thread drilling construction manner is adopted, drilling resistance is reduced, the drilling speed is increased, and the construction efficiency is improved. Under the same geological conditions, the bearing force of the foundation pile is improved, the design pile length is reduced, and the project cost is reduced.