Abstract:According to the nonlinear characteristics of landslide displacement time series,the nonlinear chaotic model is presented applying the forecasting method of chaotic time series. Then the adding-weight one-rank local-region algorithm is proposed and applied in the forecasting calculation of the displacement monitoring data obtained in Maoping landslide of Qingjiang. The results show that the forecasting method based on nonlinear chaotic model is not only accurate but also of less calculation amount and easy to handle. Thus a new forecasting method is provided for the landslide displacement.