The invention relates to a dangerous chemical safety management method based on a geographic information system (GIS) and mainly solves the problem in the prior art that dangerous chemical safety management level is low. By means of the method, a user logs in a dangerous chemical safety management platform to conduct safety management of dangerous chemical and dangerous chemical enterprises. The dangerous chemical safety management platform comprises a dangerous chemical enterprise and chemical inquiry statistic module, an emergency resource information inquiry statistic module, an emergency auxiliary decision module, a key industry and key regulation dangerous chemical inquiry statistic module, an accident case inquiry statistic module and a system maintenance module. The method well solves the problems and can be used for dangerous chemical safety management.