To meet the demand of binding a projectile trajectory correction GPS data, ephemeris binding systems is designed and realized by applying DSP of TI DSP MCU. The system realizes the man-machine communication via the display module and keyboard module, communication module to send and receive commands and data, the memory module uses for storing the ephemeris, and according to this trajectory correction projectile frame data protocol of GPS receiver, a control program module including detect data test is designed. Live ammunition tests showed that the binding devices are small and communicating quickly, the entire system is stable and easy to control and meet the projectile GPS data binding needs.