Active interest management manages interest with active routing method. It combines communication and interest management together to decide communication relationship between objects in distributed virtual environment (DVE). On analysis of active interest management, layered interest management and some other related technologies, concept of level of interest (LOI) and an evaluating model of LOI between objects in DVE are put forward in active leveled interest management. LOI is used to control the detail of communication to reduce traffic load. Therefore, the system’s scalability can be improved furthermore.