This article introduces sludge dewatering treatment in Jiangdong water plant of HangzhouXiaoshanWaterSupplyCo.,Ltd.and summarizes the main problems in operation of centrifugal dewatering machine,such as fluctuation of slugde water quality,operation parameter adjustment of dewatering machine,PAM,etc.And proposed corresponding solutions to ensure normal and efficient operation of the same process and watershed of sludge dewatering treatment for reference.