In this study,based on a dynamical downscaling prediction system,four-month leading real-time prediction experiments for JJA extreme precipitation and landslides were performed in February 2018 by the Nansen-Zhu International Research Centre,Institute of Atmospheric Physics,Chinese Academy of Sciences.The study results show that the spatial pattern of predicted summer extreme precipitation days is quite similar to the observations,yet with a significant underestimation over most regions of mainland China.The distribution of the predicted landslides is basically consistent with the reported landslide events caused by precipitation.The results show that the prediction system has a certain degree of predictability for summer extreme precipitations and landslide disasters,and possesses prospects for real-time prediction.