The utility model belongs to seamless steel tube hot rolling equipment which relates to a multiplestand two-roll reducing mill solving the problems that the existing equipment has bad rigidity of the whole stand when the equipment is used for processing seamless steel tubes with heavy calibers and thick walls, if tubes with larger diameters and thick walls are to be rolled, the modulus and the size of a bevel gear are required to be designed to be very large to cause that the volume of the reducing mill is very large and is hard to realize as well as is uneconomical. The seamless steel tube hot rolling equipment includes a main driving part (1), a horizontal driving device (2), a vertical driving device (3), a main base frame (4) and an auxiliary machine (5); the main base frame (4) comprises an upper beam (6), a lateral memorial arch (7), a lower base (8), a left memorial arch (9) and a right memorial arch (10), all of which are connected together by pretightening force pull rods; the reversing bevel gear (14) is arranged between the main driving part (1) and a one-grade reduction gearing (15). The seamless steel tube hot rolling equipment is especially suitable for rolling the seamless steel tubes with heavy calibers and thick walls.