Abstract: For scientifically solving the problem that the serious influence caused by frequently happening storm disaster in Guangxi, based on the real time rainfall data from automatic weather station in Guangxi, the historical storm disastrous data, the socio-economic data and basic geographical data of Guangxi, by using principal component analysis method and analysis hierarchy process (AHP) and GIS technology, this paper has studied the method of the real-time risk assessment of storm disaster, real-time storm hazard risk evaluation model, circumstance sensitivity model, storm hazard vulnerability model, and resistance capacity model. As a result, the real-time risk evaluation of agricultural storm in Guangxi was constructed by comprehensive utilizing the four models, which was verified an effective model by the coincidence of the evaluation result and the actual disaster of one time storm process in 2011.