Promoting withdrawal from rural homesteads (WRH) is a significant way of enhancing the efficient use of homesteads, improving the living standards of farmers, and promoting new urbanization. Social networks provide farmers with necessary resources and play an important role in the practices of WRH. Based on a literature review, this paper divides farmers’ social networks into the emotional social network, the economic social network, and the political social network and analyzes the impacts of social networks on farmers’ willingness and behavior regarding WRH using the binary logistic regression model, based on the data of 299 peasant households in Sichuan Province. The following finds are established: (1) the economic social network significantly and negatively affects farmers’ willingness and behavior regarding WRH, while the political social network has a positive impact on farmers’ willingness and behavior regarding WRH; (2) the emotional social network significantly and positively affects farmers’ willingness regarding WRH, but it does not have a significant effect on farmers’ behavior regarding WRH; and (3) the economic social network and political social network exhibit opposite influences on the transition from farmers’ willingness to behavior regarding WRH. We conclude that social networks play a vital role in affecting farmers’ willingness and behavior regarding WRH. The research suggests that expanding the scope of farmers’ interactions and social networks can be helpful in implementing WRH. The employment training system and social security system should also be improved.