The invention provides a steady-state balanced cooling system. The steady-state balanced cooling system comprises a fluid cooling device, a temperature feedback device and an industrial control device. The fluid cooling device is used for cooling fluid. The temperature feedback device is used for measuring and feeding back the temperature of tan object to be cooled. The industrial control device comprises a feedback temperature signal input end and a temperature signal output end. The signal output end of the temperature feedback device is connected with the feedback temperature signal input end, and the temperature signal output end is connected with the signal input end of the fluid cooling device. The industrial control device is used for adjusting and controlling the fluid cooling device according to a signal input by the temperature feedback device so that the temperature of the object to be cooled can be maintained at a target temperature. By the adoption of the steady-state balanced cooling system, the utilization rate of energy is increased, and the waste of resources is reduced; and meanwhile, the cooling efficiency is improved, and the temperature stability of the objectto be cooled is ensured.