In order to solve oil leakage and energy waste problems in current crude oil pipeline transmission, this paper proposes a B/S model based real-time security system for oil pipeline. The system realizes the pipeline data monitoring, pipeline leak detecting, energy-saving model and wax model. The design of the system, database and the main technology of the system are explained in detail in the paper. And with the friendly interface, stable communication, real-time monitoring, and high detection precision, this system really realizes automated monitoring and improves the level of automation of enterprise management.