Abstract: In recent years, Ordos coal production continues to rise, but the situation of coal mine safety has not improved. In this paper, throught the statistical study of 63 coal mine accidents from January 2004 to December 2011 of Ordos, taking the number of accidents and deaths as index, the study obtained 5 characteristics of gas, roof, transportation accidents. The paper analyzes the causes of Ordos accidents in coal mines, and then puts forward the prevention measures.