Small world network theory is a new development of complexity science in recent years , this theory can also be used to analyze innovation activities of the university scientific research team . This paper, using the small world network model, analysize of scientific research team in university network relations and the characteristics of network structure, and analysize the W-S small world network model applicability of university research team. By using the characteristic path length and agglomeration coefficient of small world network, the two most basic structure characteristic analysis of university scientific research team innovation network knowledge sharing mechanism, on the basis of this, to put forward to cultivate the path in the network of knowledge sharing in the university scientific research team, in order to accelerate the construction of university scientific research team provides new ideas.