The political elite is a key factor in the success of the top think tank in the United States. The article summarizes the distribution of political elites in top think tanks of the United States through statistical data,and finds that the political elite,although very low in proportion,is widely distributed in the board of directors of think tanks and holds important positions. For the cause of this phenomenon, this paper uses Muckety, the policy network analysis tool,to explore the cooperative relationship between the political elite and the think tank in the context of the policy network.