Petroleum is an important strategic resource related to national security and China is relatively lack on it. Saving automobile fuel and improving utilization efficiency are particularly important. Problems of utilization of automobile fuel insufficiently in China at present are pointed out. Factors influenced automobile fuel economy, development of vehicle technology trends and policy measures for saving fuel are analyzed. Proposed that policy measures advocated oriented concept of giving priority to conservation, efficiency; focuses on the development and application of a variety of fuel-saving technologies, to improve the quality of fuel, to speed up the elimination of old model vehicles, and actively develop alternative fuels, vigorously develop public transport and modern logistics are the effective way of China's automobile fuel economy and emission reduction.