The invention relates to a method and device for establishing a topology model by information and communication fusion analysis. The method comprises the following steps: acquiring topological data ofan information service system, and establishing an information system model; acquiring topological data of a communication transmission network, and establishing a communication transmission model; and performing fusion analysis on the information system model and the communication transmission model, and establishing a fusion topology model. According to the method for establishing the topologymodel by the information and communication fusion analysis provided by the invention, by fusing communication and information systems, intensive management and sharing of resources can be achieved, and the close cooperation between the communication and information systems when dealing with failures or performing state maintenance can be implemented; and at the same time, an information monitoringmodel can be transformed from the traditional way of based on local information to the way of based on global information, and data dispersed in all kinds of information systems are integrated by performing fusion analysis on the topology, so as to facilitate different service concerning people to apply all kinds of data.