Abstract: For efficient mining of coal resources, improve the production efficiency, Pingdingshan Mining Industry No.6 Mine 戊9-10-22170 fully mechanized working face layout in irregular shape , in the process of mining adopted a one-time retreat two stents shrinkage mining method, the results show that this method not only can effectively control the roof, and sped up the broken roof area working face impelling speed, achieved good economic benefits.