Since the 21st century，major countries in the world have been built a safe，clean and sustainable energy supply system. After the worldwide financial crisis of 2008，the renewable energy industry is not only a matter of national energy security，but also an important measure to deal with the financial crisis. The renewable energy industry is a new economic growth point. In recently，the world’s renewable energy industry is developing rapidly. In regional level，the renewable energy industry in EU is entering the stage of maturity. Meanwhile，with the rapid development of China，Japan and other countries，the Asia-Pacific region has become an important force in the world’s renewable energy market. As the industry aspect，wind，solar and biomass energy developed rapidly. Although the world’s renewable energy industry have been developed well，it still faces many challenges，and needs policy support from the governments.