In recent years，the United States，Europe and other developed countries and regions take the renewable energy development strategy as the core of national energy strategy，and continue to introduce preferential policies to support renewable energy technology development and market development. Renewable energy is not only an important part of the national energy system，but also a new economic growth point after the financial crisis. Although the developed countries hold the advanced technology of renewable energy development，but because of the huge market potential，China and other emerging market economy countries are gradually becoming important forces. From the industrial level，wind energy，solar energy and biomass energy are still developing rapidly. At the same time，it should also be noted that the development of renewable energy has some constraints，in which fossil energy prices continue to decline is an important reason for hindering the development of renewable energy market. In addition，China as an important force in the development of renewable energy in the world，its domestic energy and energy price reform policy is also an important factor in the future development of renewable energy industry. Overall，the world’s renewable energy development overall momentum is good，but also faced with many threats and challenges，the future still need to strengthen policy support.