Abstract: Based on the characteristics of electric vehicles (EV), this paper proposes a conceptual framework utilizing the Controller Area Network (CAN) bus technology, OBD-II connector and the existing telematics service systems to construct a novel telematics gateway for EV. Vehicle gateway interface has been applied to telematics service systems for many years but not to EV. The proposed framework of telematics gateway establishes a three layers' architecture, namely, the physical layer, data link layer, and application layer. The telematics gateway needs to resolve two issues: One is to simplify the framework of EV gateway interface and the other is to ensure the application scenarios for power saving and location based service (LBS). Using the framework of telematics gateway, the entire service network can meet different application scenarios for EV.