The price is the signal of the allocation of resources in the market economy, also a powerful lever to regulate market behavior. Since the Third Plenary Session of the Sixteenth CPC Central Committee, the Party and the state accelerate the pace of building a unified national market system, make the prices of most goods and services market-oriented. But there are still imbalances in the market process. On one hand, commodity market-oriented reform has been basically completed and the goods and services market mechanism basically established. On the other hand, because of the impact of the traditional planned economy and obstructions of the interest group, the process of elements market-oriented reform is far behind the progress of the commodity market-oriented reform. How to play the positive role of the market and the price mechanism well in the rational allocation of resources, not only has an important meaning for the promotion of energy conservation and the adjustment of economic structure,but also an important part to support China's long-term sustainable economic development. <<