The invention discloses a process for the low-temperature refining of a refining tank. The process comprises the steps of boiler mounting, material mixing, feeding, temperature setting, refining, residual liquid removal, water washing, cloth discharging and the like. The process utilizes the refining tank to reasonably adjust a process formula and an operating regulation and formulates the low-temperature refining process of towels; the quality of a produced product meets the requirement and saves mass energy; the temperature of between 105 and 110 DEG C of the prior process is dropped to the temperature of between 30 and 35 DEG C; for treating one ton of yarn 1.2T of steam can be saved, and over 300 yuan can be saved for the comprehensive economic benefit. The process is simple and reasonable, and can save mass energy and reduce environmental pollution.