Abstract:The analysis of continuous casting as a key link in the steel production process, hydraulic servo driven servo hydraulic station fire-resistant hydraulic oil purification is the key to ensure the safe, stable and efficient operation of the system. Hydraulic oil pollution will lead to the influence and harm of continuous casting production and its equipment. The traditional filtration method is used to filter the contaminants and the centrifugal mechanism based oil purification scheme is compared and analyzed. The effect of centrifugal oil purifier was verified in actual production, and the rationality, efficiency and advancement of the application of centrifugal oil purifier in oil purifying project of continuous casting hydraulic station were put forward.