This system adopts advanced human body intelligent detection and sensing technology, system integration technology, cloud technology and Internet of Things and other cutting-edge technologies. It can automatically and accurately detect the presence of personnel in the kitchen fire area. It has an on-site alarm and fire control center monitoring platform. Alarms, mobile phone alarms (SMS, WeChat, APP) and other early warning methods, and has remote visual monitoring and security automatic prevention and control functions such as video network monitoring, visual voice intercom, emergency linkage control, etc., which can effectively prevent kitchen after meals. Fire accidents such as oil pan fires, dry pans, and accidental flameouts caused by fire leaving people. It can effectively solve the fire safety hidden dangers caused by the fire and leaving the kitchen after catering in various commercial plazas from the technical means of supervision and prevention and control.