Abstract: In China, the power coal is the main commercial coal. In order to achieve efficient use of power coal, reducing environmental pollution and enhance the competitiveness in domestic coal market, it is very necessary to emphasize coal quality evaluation and management. In this paper, firstly, it is analyzed the impact of coal quality indexes. Base on safety, economy, efficiency, and environmental indicators, power coal quality evaluation system is established. Then, according to power coal sales and quality data of 17 key coal enterprises, the power coal is divided into three grades. The results show that high-quality coal is mainly from north area, east area and northwest area; sub quality coal is mainly from north area and northwest area. On the basis of quality evaluation results, suggestions for future coal production, sales and use are provided to enhance the whole level of quality of power coal.

Key words: power coal, coal quality evaluation, comprehensive evaluation