Relation has long been recognized as one of the major dynamics in the Chinese society where business behavior revolves around it. Relation is a social capital of the most importance in Chinese. Based on the study on the literature, combined with interviews, this paper theoretically proposed four dimensions of the relation structure among colleagues in the background of Chinese culture (emotional, instrumental, obligations and “face”.) Through the data of 611 valid questionnaires from enterprises with different sizes and natures, the models of relation structure between colleagues are obtained, which have Chinese cultural characteristics. Through regression analysis, we find that the relation between colleagues has a positive influence on individual job performance, but the relation does a different direction of the impact in sub-domains of job performance from the sub-domains of coworker relation, and the influences are also different.