Abstract:In this paper the author has raised a query on the predicted value that "the total energy consumption demand in China in 2020 is about 4.4 billion tons of standard coal." In fact,in order to meet the demand of energy of the whole country and at the same time to realize the hard constraint to reduce the CO2 emission per GDP by 40% to 45% starting from 2005 to 2020,super-strong measures must be adopted to energetically develop and use the renewable energy,such as the solar energy,the wind energy,the hydro energy,and the bio energy.Various concrete suggestions to develop all kinds of renewable energy are presented.