This product by polyol phosphate and compound with low molecular polymer and copper corrosion inhibitors, containing base,carboxyl, hydroxyl and other functional groups, is a new kind of scale and corrosion inhibitor has good dispersion performance,crystal distortion performance, can make the hard calcium scale to change its crystal structure, and form spherical dispersed in water, mud sedimentation in circular pool, not hard scale formed in the condenser.In the application of circulating water, it has good corrosion inhibition effect on copper material and carbon steel material, especially suitable for oil field water treatment.