At present, the integration of mobile applications and the Internet becomes increasingly popular, and the less-than-truckload transportation logistics information system based on Java ME is a application of this kind. The architecture of Java ME was introduced. The functional design of system and some key technologies were provided for resolving the problems，including high interface API，multithread，HTTP data transfer etc. The system design referred to the MVC pattern. The example simulation of system was represented. The conclusion was drawn for applying this system.