Abstract: The circulating water in oil refinery has the characteristics of high turbidity，high hardness，high alkalinity，bearing oil and low concentrating rate. Aiming at this point，a WSW-216 water stabilizer is compounded by using acrylic acid-acrylate-sulfonate terpolymer，maleic anhydride-acrylic acid copolymer，carboxylate phosphate and organophosphate II as the scale inhibitor，and using polyol phosphate lipid，organophosphate II and zinc salts as the corrosion inhibitor. Dynamic simulation of pilot tests showed that the treatment of recirculating cooling water with concentrating rate of （5.0±0.5） and pH 7.0—8.0 by using WSW-216 as the water stabilizer，all the indexes of the treated water can meet the circulating water quality standard. The compounded WSW-216 water stabilizer has excellent efficiency in corrosion and scale inhibitions.