In 2016, China's total oil consumption reached 556 million tons, and its import dependence reached a new high of 65.5%. Automobile consumption accounted for 40% of the total oil consumption. In addition, automobile has become one of the major pollutants and greenhouse gas emission sources in large and medium-sized cities."To alleviate the problem of energy source safety and promote the greenhouse gas emission to reach the peak as soon as possible" has become the biggest driving force of the national automobile energy saving management.Chinese and international experience has fully proved that the implementation of fuel economy standards is the most effective way to manage energy conservation.