According to the basis of analysis of stability evaluation and prediction of landslide research status, discusses the factors influencing the stability of landslide and slope stability analysis methods; analyzing advantages and disadvantages of neural network research method, operability of evaluation of landslide stability analysis, select average slope, slope of the invading front, sliding surface slope, the maximum annual average rainfall, the recent slide situation, human engineering activities as indicators of slope stability evaluation, has established based on BP neural network landslide stability analyses and applying Matlab toolbox to train network. The error analysis result indicate the sample training result and the actual situation tally basically, prove this model can tally with the project reality.