Due to the climate change, resulting from global warming, and the shortage of fossil fuel, the development of green energy becomes the important subject in every country. It is not all the same of the main development green energy items because of the different conditions in each country. The main problems are the national energy policy, the research of relative technologies and cost down during the developing process of green energy. It is important to find out the suitable green energy industries and research and control the crucial green energy technologies under face the new energy revolution in Taiwan. Finally, it is the goal to enhance the energy independence and reduce the discharge of greenhouse gas in Taiwan.