Madmen in rural family will impose a huge risk and burden to the family.In Chinese rural areas,families of such kind,as a special vulnerable group,will inevitably encounter many predicaments.Based on an empirical research of L village in Hubei Province,this paper revealed the features of such kind of families from three perspectives.Microcosmically,lack and instability of relatives’ support and lack of mutual support exist.Macrocosmically,the fragmentation of social security system,lack of social organizations support and the attribution bias of community culture exist.Absence of support from hospitals and communities also contribute to this.Then,this paper proposed methods to improve and construct a social support system to help families of such kind.In the social transition period,it is necessary to build a mechanism with government leading,community supporting,and social institutes participating,which embodies in income expansion,psychological support,mutual support in communities and the embedded professional social work.