China is at the transition stage of optimizing its fertility policy. Based on the policy style interpretation framework, this article focuses on the Chinese style of fertility policy, and can analyze the recursive picture from crisis design to rational design, then to gradual design, and gradually realize the social design. This corresponds to four types of executive logic: authoritative, expert-guided, coordinated, and multi-cooperative. The Chinese style of the reproductive policy can be summarized as “state capacity leads to the social order”, which embodies on the dual evolution of the design and implementation of the “the governance of China”. Facing the long-term, complex and severe super-social project of solving China's population problem, the fertility policy style is based on the socialist system with Chinese characteristics, and contains China's unique governing characteristics and governance elements, namely "conforms to China's national conditions of good governance" design and implementation of innovation "concentrate resources to accomplish large undertakings". Based on the dual evolution of China's fertility policy in the design and implementation, it is possible to objectively and comprehensively understand the changes in the mission of fertility policy from social management that restricts fertility to public services that encourage fertility, and to better integrate all forces so that the top-level design and implementation process of future fertility policies can take into account the needs of the country and the direction of public opinion.