Abstract: With the improvement of people′s living standard,clinical studies on the quality of life and psychological research have drawn more and more attentions.The quality of life is a comprehensive evaluation of a personal life.However compared with the investigations and studies on the life quality of adults,there are very few investigations and studies on the life quality of teenagers and young children,especially on that of the disabled orphans in orphanages.In this paper,a survey on the life quality of orphans in the first social welfare institute of Changsha is carried out.Some scales suitable for evaluating life quality of disabled children are adopted. A normal children group is taken as a contrast group.Scoring and processing of the obtained data are firstly taken with the EXCEL,and the principal component analysis is then made with the software SPSS.Upon the survey and analysis,problems concerning the life quality of orphans are put forward,and suggestions for solving the problems are given.

Key words: Quality of life, Orphan, Principal component analysis