The invention relates to an oil management system, and relates to the field of digital management. The system comprises a management terminal, a transportation terminal, an oil depot management terminal and a mechanical terminal. The management terminal is connected with the transportation terminal, the oil depot management terminal and the mechanical terminal. The management terminal is used forinputting control information or order information and respectively sending the order information to the transportation terminal and the oil depot management terminal, and the management terminal is also used for controlling one or more of the transportation terminal, the oil depot management terminal and the mechanical terminal according to the control information. The transportation terminal isfixed on an oil transportation vehicle and feeds back a transportation safety state to the management terminal according to the order information. The oil depot management end is fixed on an oil depotand feeds back a refueling safety state to the management terminal. The technical problem of how to detect the oil stealing condition in real time is solved, and the method is suitable for oil management and monitoring.