The invention discloses an equipment waste heat utilization system, which comprises an air-conditioned room, a heat exchanger, a motor, a fan, a ventilating duct, spinning equipment and auxiliary heating equipment, wherein the spinning equipment and the heat exchanger form a primary loop; the air-conditioned room and the ventilating duct form a secondary loop; a heat absorption end of the heat exchanger is arranged in the spinning equipment; a heat radiation end of the heat exchanger is arranged in the air-conditioned room; the heat absorption end is connected with the heat radiation end through a pipeline; the ventilating duct is arranged in the air-conditioned room; the motor and the fan are arranged at a pipeline port; the auxiliary heating equipment is arranged in the air-conditioned room; the ventilating duct is communicated with a workshop. Through the manner, the equipment waste heat utilization system has the advantages of high reliability, compact structure, good adaptability, energy conservation, heat radiation of auxiliary equipment, and the like, and meanwhile, the system has wide market prospect in the commercial unit field.