Sterilization system and sterilization method for clean room

The invention discloses a clean room sterilization system and sterilization method.The clean room sterilization system comprises a sterilization box, an air inlet pipe fixed to the back side face of the sterilization box and an air outlet formed in the front end face of the sterilization box, an air outlet net is installed in the air outlet, and a disinfection box is fixed to the top of the sterilization box; a liquid injection pipe is fixed to the surface of the disinfection box, a pump body is fixed to the side, close to the disinfection box, of the disinfection box, and a connecting pipe is fixed between the disinfection box and the pump body. According to the sterilization system and the sterilization method for the clean room, the conveyed air can be sterilized through the ultraviolet sterilization lamp and the sterilizer, harmful substances such as bacteria in the air can be killed through the sterilizer, the air in the clean room can be sterilized, and the air in the clean room can be sterilized throug