Based on the technical framework of train interconnection and interoperability in the international standard IEC TS 62580-2, and the development trend of the train video surveillance technology, a set of train intelligent video surveillance system was designed according to the current railway train. The system was connected to the train control and management system (TCMS), wireless transmission device (WTD), passenger information system (PIS) and other vehicle subsystems through access to the Ethernet train backbone (ETB), constituting the train intelligent video surveillance system interconnection network, which achieved information aggregation, vehicle-ground interconnection, fault linkage and intelligent image analysis and push, and was successfully applied to the South Africa 22E electric locomotive face forward closed circuit television (FFCCTV).