Among the regulatory policies, feed-in tariffs (FIT) and renewable portfolio standards (RPS) are the most popular to promote the development of renewable energy power industry. They can significantly contribute to the expansion of domestic industrial activities in terms of sustainable energy. In this paper, we synthetically consider various important factors with the analysis of the existing literature, and use system dynamics (SD) to establish models of long-term development of the renewable energy power industry under FIT and RPS schemes. The model not only clearly shows the complex logical relationship between the factors but also reveals the process of coordination between the two policy tools in the development of the renewable energy power industry. In addition, as an example of development of renewable energy industry, the paper studies the development of China's photovoltaic power industry under different scenarios. The models proposed in this paper can provide a reference for scholars to study development of the renewable energy power industry in different countries, thereby facilitating an understanding of the renewable energy power's long-term sustainable development pattern under FIT and RPS schemes, and helping to provide references for policy-making institutions. The results show that in the perfect competitive market, the implementation of RPS can promote long-term and rapid development of China's photovoltaic power industry given the constraints and actions of the mechanisms of RPS quota proportion, the TTGC valid period, and fines, compared with FIT. At the end of the paper, policy implications are offered as references for the government.Sustainability 2017, 9, 532 2 of 23 activities in terms of sustainable energy [5]. Among the regulatory policies, FIT and RPS are the most popular. More than 60 countries and regions worldwide have implemented one or other of the two policies [6]. FIT and RPS have common attributes, in that both are policy tools with dual characteristics of government intervention and market regulation.FIT policy, represented by China, South America, and most European countries, is a scheme designed to accelerate investment in renewable energy technologies. It is a government-led regulatory mechanism that requires power grid enterprises to buy electricity from renewable energy producers at government-specified prices. In the early stages of renewable energy development, it ensured the sale of renewable energy at a protected price, ensuring that the high costs of electricity generation associated with certain renewable energy technologies do not prohibit the development and use of those technologies, eliminating the usual uncertainties and risks of renewable energy [7]. The goal of the FIT is to offer cost-based compensation to renewable energy producers, providing them with price certainty and long-term contracts that help finance renewable energy investments [8].