In order to standardize and guide the design of the weak electricity system of the utility tunnel,we introduced the design points of each subsystem of the weak electricity system of the utility tunnel,such as: communication system; Control system; Environment and equipment monitoring system; Video monitoring system; intrusion detection system; Electronic patrol management system; Fire detection and alarm system; Combustible gas detection and alarm system; Fire door control system; Voice communication system. As a reference for similar engineering design.