This device is ‘Smart disinfection system’ automatically checking temperature and face of visitors to identify them and their abnormal temperature fast and accurately by using infrared sensor and camera. Facial recognition and temperature measurement at the same time can make fast entrance management after placing entrance line. Red light alarm system is Accurately activated when it detects abnormal temperature and unidentified visitor. Also the visiting record will be automatically saved, it is easy to keep the record of visitors. It is contactless thermal measurement type for the safety of staffs. High accuracy that can identify abnormal temperature and unidentified visitor with wearing mask to prevent any mistake from abusing different ID card perfectly. Building up innovative disinfection system that can preform security and prevention of disease fast and efficiently