Abstract: There are many large landslides in the crystalline schist region of Shikoku Island,Japan,which have been revealed and are being monitored by on-site monitoring system. The seasonal continuous high-intensity rainfall plays a key role in provoking landslide movement. This paper introduces the characteristics of this kind of landslide movement and investigates the influence of intense rainfall on the activities of crystalline schist landslide by examining rainfall and displacement of four typical l...