On 22nd June 2004, a landslide disaster occurred in the right bank of the middle reach of the Pali River, a boundary river between China and India. The landslide blocked the Pali River and formed a barrier lake, then, with the dam broken, flood discharged and destroyed villages in China and India near the boundary. AGRS organized "the landslide of the Pali River satellite remote sensing survey" program. With a total of 13 temporal satellite data of 6 types as the data resources, based on "digital landslide" technique, which combines the landslide principle and integrates RS with GPS and GIS, the disaster survey and monitoring is carried out. It is shown that the disaster was caused by a middle scope rapid rock landslide. Two years' monitoring indicates that the whole of 2004-6-22 landslide body has already fallen down to the Pali River and the bank slope where the landslide occurred is now basically stable with only a few upside rock slip. Remote sensing ascertained that the original place of barrier lake was an atrophic lake basin of scale now of 1.3 km2. The entire process from formation of the barrier lake to the lake burst has been monitored by remote sensing. It is predicted that if the Pali River should block again, the Kala and Chulushongjie villages in China will be mostly affected and some villages in India near the boundary may also be affected, so the lower reach villages should seek refuge to avoid the disaster.