Abstract: As China develops her hydropower, reservoir migrants? sustainable development is emerging as a main issue in hydropower construction. Based on the concept of sustainable development capacity, this paper constructs a non-economic factors framework, and investigates migrants who moved from the Three Gorges project area to three cities of Hubei and Jiangsu provinces. Using factor analysis, we divide non-economic factors contributing to sustainable development capacity of reservoir migrants into two groups, fundamental factors and development factors, and compare these factors of different areas in terms of importance degree and satisfaction degree. The results show that most of the factors have obtained high scores in importance and satisfaction assessment but the one of social support system is relatively low in satisfaction degree. An in-depth examination on the investigation data indicates a main reason: single liability subject for the migrants, whereby the migrants are not able to participate in the consulting process and social supports to them remain insufficient. The results are helpful in improving reservoir migrants? work.