Since the beginning of last winter, although the national fire situation has been generally stable, there are risks and worries in stability. At present, various types of hidden dangers of fire still exist in our country, and the risk of group death and injury fire is still very high. According to incomplete statistics, China currently has a total of 5,513 large commercial complexes, more than 637,000 high-rise buildings, more than 100 meters on the reach of 8404, group rental in various places exist in large numbers. In terms of large-scale commercial complexes, such buildings integrate shopping, catering, accommodation, entertainment and other business and life functions in one, with huge volume, complex structure, large flow of people, and various risks and hidden dangers, which has become an important issue of urban operation safety.