Intelligent in-transit supervision platform is designed to provide in-transit transport supervision services for goods in port areas, bonded logistics and transshipment in different countries. The platform is based on security smart locks or vehicle-mounted terminals, and relies on GPS positioning system, Beidou positioning system, and mobile communication network to realize real-time monitoring of the dynamics of the goods in transit, and at the same time, it can transmit the data of the vehicles and cargoes in transit such as their position, status, and alarms, etc, to the Customs' logistics supervision system to realize data sharing.