The purposes of this research are to analyze directions for surface runoff flow after the typhoon events simulation, identify low-lying areas prone to flooding in the scope of the study. Simulation studies were divided into two parts. Frist, the use of geographic information system will be the rainfall data and groundwater level data to individual analysis of different interpolation distribution of rainfall and water level situation, the choice of interpolation method are Inverse Distance Weighting、Spline、Kriging. Second, to rainfall distribution situation that adding the concept of aspect factor, analyze the flow of rainfall runoff. Final, analog estimate compare prone to the scope of flooding with Typhoon actual situation after the flooding. After analysis revealed that kriging collocation exponential model with actual situation the results obtained with 76.21%.