Taking an IT outsourcing company's project team as an example, by building team members’ social networks and extracting their network characteristics, we can put employees’ behavioral variables and social network variables into the same economic model to do variable regression analysis. The study found that employees’ network structure characteristics have certain influence on employees’ knowledge sharing and creativity, and employees’ knowledge sharing partially mediated the network structure characteristics and creativity. Based on structure characteristics of the R&D networks, this paper explains the organizing, coordinating, communicating role of employees from the parent company in the IT outsourcing project team under HR multi-model. We also proposed measures and strategies to promote employees’ creativity under HR multi-model.