Abstract: Emergency SAR (Search and Rescue) is of great significance to human life and property, economic development, national interests and the responsibility of a major country. And it is an important part of promoting the modernization of the life security system and capability. With the global expansion of China’s strategic benefits, the demand of global emergency SAR is becoming increasingly urgent. This paper expounds on the emergency SAR system in China and analyzes the SAR technical ability with BeiDou Navigation Satellite System (BDS) as the core. The challenges faced by China’s global emergency SAR system are also studied in terms of user experience improvement, efficiency development, international standards. It is important to construct national global emergency SAR system with BDS emergency SAR service as the core. And it is necessary to eliminate pain points and blockages, realize information fusion and sharing, and comprehensively improve China’s global emergency search and rescue capability. Additionally, it is suggested to promote the BDS SAR service to fully enter the international standard system, provide new public service products for the world, and help build a community with a shared future for mankind.