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Currently the geographic information system (GIS) is mainly applied to describe and analyse static information of space, lacking of analysis of space-time and ability of dynamic simulation.. The changes of landslides can be recognized the spatio-temporal process, bringing new challenge and need to GIS analysis of space. Cellular automata Cellular automata (CA), is a "bottom-up" dynamic simulation modeling and simulation frame-work , which is naturalness, rationality and feasibility in simulating the space of complex systems with space-time dynamic evolution . Using loose coupling method to integrate the GIS technology and CA , establish a suitable forecasting model of highway landslide disaster, and forecast the development trend of Da Zha Zi landslide by using CA model.