Abstract: The paper carried out the classification of vegetation of Northern Tibetan plateau (Lhasa City and Nhagchu Prefecture).This paper described three parts as following:Firstly, administrative zone, topography and climate factors of nature disaster were mentioned.Secondly, practical investigation and remote sense date with scanning map from China vegetation map, and R2V soft and Arcinfo were combined for getting a digital vegetation map of Northern Tibetan plateau.Thirdly, Northern Tibetan plateau vegetation was classified by a part of data was got from China vegetation map and MODIS satellites, such as 6, 2 and 1 combination channel with data was got from 13th, 14th of September, 2004.Moreover, 7 typical vegetation types were classified and it offered reason for grassland sustainability and making policy.