Abstract: This paper introduces the application of potassium permanganate，composite potassium permanganate and permanganate oxidation combined with other medicaments. Potassium permanganate and composite potassium permanganate have outstanding performance in removing the organic pollutants，algae and deodorization，color and turbidity，heavy metals，and advantages in enhanced disinfection. This oxidizer is highly efficient and economical. It is very promising in water treatment.