【Abstract】 Based on the data of three surveys in 1987, 1993 and 2001, current study explores issues concerning whether or not, how and under which condition the institutionsforms, like danwei institution or non danwei institution,affects it’s member’s social behavior in the era of reform. It tries to test the hypothesis that people’s feeling of dissatisfaction and relative deprivation are directly related with or influenced by their institutions forms. As it’s shown from the data in 1987, 1993 and 2001, the danwei members tend to be more dissatisfied and relative deprivated than no danwei members. It shows also the different behavior orientations by the members who are working in different institutions. In some sense, the innovation of danwei institution still depends on the differentiation process of no professional functions from the danwei institution, which is one of the importantest tasks in current reform. The trend that danwei as community in the past and community as danwei at present falsified the hypothesis that danwei will disappeared with the development of the reform. But now danwei is still an institutional ruling form in present Chinese society.更多还原