Abstract: At the end of 2012,the industrial upgrading and modification project over the past three years in Tianzhuang coal preparation plant,Pingdingshan Tianan Coal Co Ltd smoothly complete and put into operation. After industrial upgrading,the production capacity increased and the various kinds consumption decreased substantially in Tianzhuang coal preparation plant,reached the prospected target. Based on the production practice,the article reviewed the process of the upgrading,and introduced some experiences and summarized some shortages.