摘要:The informal sector trader has a greater chance when they had empowered compared with other professions in vertical mobility among people on low incomes. In addition,based on BPS data from 1996- 2008,the condition of the poor in Indonesia has always fl uctuated with the range between 1% to 5%,to rise or fall on the poverty line. This condition indicated that there have not formulated of the poverty reduction yet. This study was to determine the extent of social capital’s role in the response to the urban poor in the community of informal sector traders in the city of Semarang on the basis of the pockets of the informal sector as traders in Semarang Jalan Gajah Mada,Pasar Kobong,and bird markets Citarum. Respondents of this study include the informal sector traders who can represent the data analysis,and respondents who can provide additional information relating to informal trading sector. Data analysis using qda weft of this study are 1) Categorization of cooperation undertaken in the informal sector traders community of the urban poor can be divided into joint categorization of low,medium and fairly. Categorization of this cooperation is based on how far they can foster capital that can be used as working capital from high level. Interactions are very rare which is often done while the low cooperation,2) Traders prefer informal sector in the form of informal cooperation,3) Found allegations reason not to develop cooperatives in the informal sector traders community. 4) In this research can be made categorization “please help” in the merchant community informal.5) community cohesiveness informal traders can be categorized as high sector. This condition is shown from the notion of my (community members) and you (not a member).