This paper analyses the characteristice of landslides and disasters caused by landslides in this region through the field surveys of 7 counties along the left bank of the lower reaches of the Jinsha River valley.It also points out that at present landslide disasters are in a new active phase because of the effects by natural and human factors in this region.For this reason,the author puts forwards some regional comprehensive countermeasures based on the analysis of the disasters caused by landslides.