It is necessary to analyze the major risks faced by China’s public security at present and in the medium and long-term in the future，so as to ensure that China’s modernization process unaffected. As one of the risks，the current global COVID-19 still keeps spreading fast. China’s epidemic is hardly to rebound in a wide range，while a relatively high-level control intensity is still needed；mankind has entered a high-risk period of pandemics；global warming leads to extreme climate and increases associated risk；earthquake catastrophe is like a sword hanging on the top；and the hidden dangers of accidents and disasters in key industries continue to exist.