The present invention relates to a BeiDou state secret safety terminal module and a safety encryption method. The BeiDou state secret safety terminal module comprises a core controller and a state secret level safety encryption chip connected with the core controller, a BeiDou first generation active communication functional module communicated with a BeiDou second generation RDSS active satellitesystem and a BeiDou second generation passive location functional module communicated with a BeiDou second generation RNSS passive location system. According to the present invention, the problems that a conventional satellite navigation communication module is low in safety, and the communication content is easy to monitor can be solved.