Quickly obtaining the seismic information and understanding the disaster situation after the earthquake,is essential for reducing the loss of life and property,post-earthquake disaster assessment and rescue decision. With the implementation of the National Earthquake Intensity Quick Reporting and Early Warning Projects,the China Earthquake Networks Center has established the national center of earthquake intensity quick report and early warning technology platform. The platform is capable of collecting and exchanging real-time waveform data of national early warning,analyzing and processing real-time waveform data,timely producing information products such as earthquake early warning,intensity quick report,earthquake basic parameters and focal parameters. Morever,the platform is functional of providing the emergency information service system to realize second-level earthquake early warning,minute-level parameter quick report and intensity quick report. For a case of example,the earthquake early warning information of the Luding M_S6.8 earthquake has been successfully issued,providing a strong guarantee for earthquake prevention and disaster reduction and emergency rescue. In this paper,the overall and its subsystem functions of the platform are introduced in detail,and the technical progress of the platform and the shortages that need to be improved are discussed.