Abstract:China has entered into the "reform period" of economic development mode characterized by "innovation-driven development" based on the theory of political rank-order tournament, and a Technological Innovation Oriented Innovation tournament is being launched among local governments. Local governments choose different way to participate in the tournament according to their own endowment. Due to the unpredictability of innovation consequences, the investment projects with the most prior performance often become the tournament " target of local governments, which shows that the greater the prior investment in science and technology innovation, the more likely local governments are to win the tournament. In this context, the huge investment and the value of scientific and technological innovation required for the construction of big-science infrastructure cater to the local government"s preference, and thus win the good graces of many local governments. Finally, it points out that we should be careful to prevent the consequences of repeated investment, waste of resources, and even "pseudo big-science infrastructure big-science infrastructure construction, and puts forward countermeasures and suggestions.