With the increasing complexity and uncertainty of emergencies, the traditional model of government-led and experts decision-making has been unable to meet the requirements of modern emergency management. As a direct stakeholder, opinions and risk perception of the public play a key role in emergency decision-making. To fill the lack of systematic research on large-scale group decision-making with public participation in emergency management, the relevant studies are reviewed. First, the key factors affecting public participation, participation models and mechanisms, and strategies to promote public participation are analyzed. Second, the core research contents of large-scale group decision-making and the applications in emergency decision-making are reviewed. Additionally, with a particular emphasis on large-scale group emergency decision-making problems involving public participation, methods of public opinion mining and sentiment analysis, as well as consensus research are outlined. Finally, focused on systematic analysis of the factors of public participation, research on timeliness of large-scale group emergency decision-making, applications of sentiment analysis techniques, and design of interactive consensus feedback mechanism, the shortcomings of current research and potential research directions are summarized.