A steel pipe pile is provided to prevent the subsidence caused by the load of a structure, and to increase bearing capacity and pullout capacity. A steel pipe pile comprises a steel pipe pile main body(20) formed in the shape of a pipe opened upward and downward, and a flange formed on the lower circumferential part of the steel pipe pile main body and inserted/fixed to milk(4) injected and hardened in a pile hole(2) to offer vertical resistance to the steel pipe pile main body.
