数据、信息和知识是危机管理的关键要素，也是突发事件应急管理决策制定的基础和重要支撑，充分发挥信息资源优势能够解决“数据孤岛”问题、协同应对与治理突发重大公共卫生事件。文章借鉴Dasarathy信息融合模型和JDL信息融合模型，构建了以融合多源异构应急信息为基础、以服务应急管理与应急决策需求为目标的面向基于突发重大公共卫生事件的多源异构应急信息融合模型，实现了对信息实体、信息源、信息融合技术和信息环境四个关键要素的整体性和系统性融合，可为突发公共卫生事件的风险监测、舆情管理、应急响应与决策提供应急情报服务，减少突发重大公共卫生事件所造成的损失。

Data, information, and knowledge are the key elements of crisis management, as well as the basis and important support for emergency management decision-making. The advantages of information resources should be fully used to solve the problem of "isolated data island ", and coordinately respond to and manage major public health emergencies. Based on the existing information fusion research, this paper draws on the Dasarathy and the JDL information fusion model to construct a multi-source heterogeneous emergency information fusion model. The model is based on the integration of multi-source heterogeneous emergency information, and aims to serve emergency management and emergency decision-making needs, and achieves the overall and systematic integration of the four key elements of information entities, information sources, information fusion technology and information environment. It can provide information services for risk monitoring, public opinion management, emergency response and decision-making of public health emergencies, and further reduce various losses caused by major public health emergencies.