The invention discloses an assembly type steel tube concrete pile. The assembly type steel tube concrete pile comprises a bottom steel tube, at least one unit steel tube, a loading plate and a drill bit, wherein outer threads are arranged on the respective top outer wall of each of the bottom steel tube and the unit steel tubes; inner threads are arranged on the respective bottom inner wall of each of the bottom steel tube and the unit steel tubes; spiral blades which surround in a spiral mode are welded on positions, between the outer threads and the inner threads, on respective outer wall of each of the bottom steel tube and the unit steel tubes; second fixed rings are fixedly welded on positions, above the inner threads, on the respective bottom outer wall of each unit steel tube; the tops of the unit steel tubes can be in threaded connection with the loading plate through the outer threads; and the loading plate is also detachably fixedly connected with the first fixed rings on the tops of the unit steel tubes. The assembly type steel tube concrete pile can be easily punched into ground section by section in sequence in a rotary mode.