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Objectives:the paper aims to investigating the prevalent actuality in order to provide policy foundation for positive aging;Methods:questionnaire survey about loneliness and influencing factors was held among 516 old people with age of 60～90 (241 male,275 female) who were extracted at random from 18 districts in Kunming.On the basis of socially epidemiological description about loneliness,stepwise regression analysis was engaged among A group and B group.