For rapid, effective analysis of landslide displacement deformation trend, based on the mathematics of quadratic exponential smoothing, eight door landslide 90 cumulative displacement data fitting and forecasting is an- alysed. The fitting result of displacement of the average absolute error is 12. 745 mm, the average relative error is 0.071, and that prediction results and the theoretical results fit well with the actual value row-level trigger is es- teablished at the same time, to anticipat model prediction, and to have real-time access to real-time landslide evo- lution trend. Comprehensiv...