The paper introduces the electrical demand status and the achievement of nuclear power development in China, analyzes the influence of the load factor, the project lifecycle, capital cost and interest change rate to the cost of nuclear power, and discusses the favorable factors of the commercialization of nuclear power. Then the total social cost and accumulated installed capacity that is necessary to accomplish the commercialization are calculated. Finally, suggestions on finance and taxation policy, technical introduction, innovation policy and institutional reform relating to the promotion of the commercialization of nuclear power are proposed.