In this paper, we clarified how relationships in local community are reorganized by focusing on economic relationship in housing relocation in Sri Lanka after the Indian Ocean Tsunami in 2004. We selected the resettlement site G which has high stable settlement ratio (nearly 90%) in Welligama, Southern Province. We selected 86 households living at "site G" as of January in 2009 and analyzed reorganization process and combination pattern of their neighborhood relationship, blood relationship, Micro Credit's relationship and owner/user-relationship of housing site. As a result, relationships in existing local communities have been maintained at previous settlement or succeed at "site G" and Micro Credit's relationship is probably essential for residents' economic. We also verified that Micro Credit's relationship is probably maintained or succeeds without neighborhood nor blood relationship and therefore it has feature of selective relationship which is important for residents' initiative.
