For a long time,campus electrical fires occur frequently,most of which are hard to detect and discover.Once a fire occurs,teachers,students will be severely endangered,and moreover,school and society will suffer a lot of losses.Therefore the prevention of campus electrical fire is very important.In order to accurately prevent electrical fire,it is nec-essary to monitor and operate circuits in the terminal.This paper mainly analyzes and designs the monitoring and control of circuits in the terminal.