Studying the Characteristics of Railway Transport Accidents in Mining Area By Use of Gray Relevant Analysis Wang Guang Han Li Research methods of grey system theory were used for analyzing railway transport accidents in mining area. Through analyzing the grey relevance of accidents, the relationship between accidents and factors was given quantitatively, which gave new train of thought to prevent accident,also gave a new method for analyzing safety system. Keywords: Accident,Degree of grey relevance, Analysis of grey