以英国国际发展部的可持续生计分析框架为研究基础，结合城镇集中安置下贵州生态移民家庭生计特点，设计科学、合理的生计资本指标体系，对8～10个城镇移民安置点的生态移民家庭进行调研，采用具有权重可变性的DEA方法、动态DEA方法、DEA-TOBIT分析方法、聚类分析方法等对移民家庭生计资本总量与结构变化、生计模式选择的有效性及可能产生的生计风险等问题进行深入研究，揭示城镇集中安置下生态移民家庭生计资本变迁规律及其对生计模式选择的影响，探索移民家庭生计风险类型、特征及其产生的根源，建立移民家庭生计风险防范机制，提出实现移民家庭可持续生计目标的政策优化策略，为政府制定生态移民政策、促进城镇集中安置下生态移民家庭可持续发展提供理论指导。

Based on the Sustainable Livelihood Analysis Framework（SLA）, this research designs a scientific index system of livelihood capital in accordance with the characteristics of Guizhou eco-immigrant families, and conduct family survey on 8-10 urban resettlement sits of ecological migrants. By using variable-weighted DEA, dynamic DEA, DEA-TOBIT and cluster analysis, this study researches on the change of total value and structure of families' livelihood capital, the effectiveness of livelihood patterns selection, possible livelihood risk and etc, and reveals how the livelihood capital changes and impacts on the livelihood pattern, and explores the risk types, characteristics and their origins. The result, from a theoretical perspective, helps to establish a risk prevention mechanism and build up optimized policies on achieving sustainable livelihood objectives for the eco-immigrant families under the urbanized resettlement.