The invention discloses steel pipe fixed-distance cutting equipment which comprises a guide rail frame. A guide rail groove is formed in the guide rail frame and internally provided with a pipe pushing machine, and a plurality of movable holes are formed in the inner side walls of the two sides of the guide rail grooves correspondingly at equal distances; each movable hole is internally provided with a blocking rod, and a permanent magnet is mounted at the end, close to an electromagnet, of each blocking rod; the inner side wall of the side, away from the guide rail groove, of each movable hole is provided with the corresponding electromagnet; a plurality of electric switches are mounted inside the guide rail frame at equal distances; and a single chip microcomputer is mounted inside a clamp seat. The steel pipe fixed-distance cutting equipment is simple in structure and easy to achieve; a steel pipe is automatically cut through mutual cooperation of all the devices, thus the labor expenditure is reduced, the production efficiency is improved, meanwhile, the cutting distance of the steel pipe can be precisely controlled, and it is guaranteed that the length of each section of steelpipe is within the allowed range; and a whole system works stably, safety and reliability are achieved, and the product quality is ensured.