Ultraviolet disinfection equipment that is the use of high-intensity ultraviolet germicidal lamp irradiation, destruction of bacteria and viruses, such as DNA and other internal structure, so as to achieve the killing of pathogenic microorganisms in the water disinfection device. Suitable for ultraviolet technology sensitive to the destructive power of bacteria, viruses, fungi and other microbial species spectrum. Applicable to urban sewage treatment plant water, urban sewage reuse water, industrial wastewater treatment station water UV disinfection equipment.