Proposed are a method and a system for management of resources of portable resource modules, each connected to a communication terminal, which modules comprise electronic memory units and are designed in particular as chipcards. A first resource management instruction comprising a module identification is transmitted to a resource management center. A second resource management instruction is transmitted from the resource management center via a communication network to the resource module identified through the module identification. In the particular resource module, resources are made ready or released by a resource control mechanism corresponding to the received second resource management instruction. A resource management confirmation is transmitted by the particular resource module via the communication network to the resource management center, and in the resource management center information about the resources made ready or released is stored assigned to the module identification.