According to Baidu Encyclopedia, the basic mobilization mechanism refers to a series of policies and measures to deal with emergencies. These policies and measures are usually formulated and implemented by government agencies and other relevant organizations to ensure that resources, manpower and technical support can be quickly mobilized when necessary to meet the needs of the public. In addition, the basic mobilization mechanism also emphasizes the role of grass-roots communities, because grass-roots communities are the basis of mobilization and the key link of rapid response.