The ultraviolet sterilizer has the even water flow, no dead corner, good light conditions, thorough sterilization, low energy consumption, flexible and convenient installation. The main material is the stainless steel, there is no metal ion infection problem, the product structure is the closed container quartz socket tube, and there is the built-in electrical control device. The theoretical service life of the key ultraviolet radiator lamp is up to 10,000 hours, for reaching the international advanced level. With the elegant appearance, compact structure, convenient operation and maintenance, the product is widely applied to the industrial and mining enterprises, residents' living, restaurants and hotels, institutions and schools; field troop, food processing, pharmaceuticals industry, preparation of high-purity water, public place or leisure tourism directly supplying drinking water and beverage not containing residual chlorine in the water or other industries.