Prestressed pipe pile structure and construction method thereof

The invention relates to a prestressed pipe pile structure and a construction method thereof, relates to the technical field of buildings, and aims to solve the problems that concrete and pier heads at the joints of pipe piles are damaged due to the fact that the pipe piles are connected through welding, welding spots are prone to being corroded by underground sewage, and the durability of the pipe piles is poor. The pipe pile comprises a pipe pile body, a first pile splicing disc arranged at one end of the pipe pile body and a second pile splicing disc arranged at the other end of the pipe pile body, a connecting column is arranged on one end wall of the pile splicing disc, a plurality of receding grooves are formed in the side wall of the connecting column, inserting blocks are arranged in the receding grooves, and a connecting hole is formed in the top wall of the second pile splicing disc. A plurality of inserting grooves are formed in the inner wall of the connecting hole, and the first pile splicing dis