Abstract: Since May 2012,China's coal price fell sharply and recently had been running low,the coal industry is facing enormous pressure.At the same time,the great changes of china's coal supply and demand situation also symbolizes the rapid development of the coal industry "ten golden years" to the end.Firstly,this paper analyzes the achievements of China's coal industry in past ten years.Secondly,with the coal price as the center,the paper elaborates the reason of great development of our coal industry from the aspect of coal supply and demand relations.Finally,policy suggestions including the coal price marketing are proposed under the new situation.