Sustainable land use was an important basis of sustainable development strategy. Sustainable land use of Three-Gorge reservoir area in Chongqing was the condition to maintain ecology environment,ensure economy develop healthily at high speed. Immigrant settlement region of Three-Gorge reservoir area was an important region with the best active economy,the biggest land supporting capacity and the sensitive ecology. On the basis to analyse cheracteristics of land use, present situation of society in immigrant settlement region, comprehensive levels of sustainable land use were evaluated and limited factors and reasons for sustainable land use were expounded systematically. The main limited factors for sustainable land use in settlement regions included social and economic development level and industry structure disparity, optimal allocation level of land use, citified development level, resources and environment issues, support poverty population and extra labor diversion.