The Chinese government has recently set a target of reducing energy consumption intensity by 20% during the 11~(th) Five-YearPlan period(2006-2010).This paper has carried out a quantitative analysis of the major factors affecting China's energy consumption and ways to achieve the target.The study shows that the readjustment of industry structure and the share of heavy and light industry,increasing energy conversion and utilization efficiency,and upgrading the value of products and improving the residents' energy consumption mode will play the important role in achieving the target of reducing 20% energy consumption intensity,contributing one third respectively.The paper has also analyzed the impacts of GDP growth on the target,and concluded that a higher GDP growth rate is more conducive to achieve the target whereas increasing the total amount of energy consumption at the end of the period.