Smart Optical Line System is a standardized and open intelligent service transmission platform, which meets a variety of service network scenarios such as optical service transmission of access network/metro network/backbone network, high traffic data transmission of data center, and data backhaul of 5G fronthaul network. The system integrates the monitoring capabilities (service, link, equipment) of various fiber optic communication technologies such as WDM, EDFA, AWG, electrically tuned TDCM, MEMS, optical performance monitoring and analysis, OTDR, etc., which is applicable to different types of customers and greatly saves users’ management and maintenance costs.