摘 要 通过对天津贫困人口的随机样本的分析，探讨了社会支持的数量、质量和社会支持网的网络结构对贫困人口的身心状况的影响。研究发现，社会支持的数量对城市贫困人口的身心状况没有影响。社会支持的质量则对贫困人口的身心状况有正向的影响。社会支持网的异质性越高，趋同性越低，生活满意度越高。这些指标对身体健康则没有影响。但网络中高于中心成员收入水平的越多，身心状况越差。

Impact of Social Support Networks on Physical and Mental Conditions of China’s Urban Poverty-stricken Population He Zhaiping （Tianjin Norman University，Tianjin，300387） ABSTRACT：By analyzing the random sample of the urban poverty-stricken population in Tianjin，The paper explores the quantity, quality of social support and structure of social support networks on physical and mental conditions of the poor. It proves that the quantity of social support have no efforts on physical and mental conditions of the poor in Tianjin. Quality of social support is positively related to life satisfaction and physical health. the higher The heterogeneity of social support network and the lower network homophily ，the higher the life satisfaction. These indicators have no efforts on physical health. But the more the number of network members whose income level is higher than the ego in whole networks，the worse physical and mental condition of the poor. Keyword：urban poverty-stricken population，social support networks，physical and mental condition