This paper deals with some techniques of landuse surveying and Mapping using color-IR air photos for estimation the flooded region and immigration area caused by the construction of power station. The study area is 19 000 square kilometers

About more than 300 sheets of landuse status map and landuse type map had been compiled and 7 sets of varied landtypes area data in corresponding area were provided to users. The expanding of remote sensing resources

a suitble local landuse classification system and selected training areas

a good mapping mathematic base

orthophoto map and linear objects extracted technique etc.

have been suitablly created for getting a good results. In earlier stage of surveying of power station

the results had been used and shownagood future.