Abstract: Comparing with traditional mining technology of remaining coal pillars, gob-side entry retaining technology could improve the recovery coefficient of coal resources and reduce the tunneling amount of roadway. The application effect of the gob-side entry retaining is good in the well occurrence thin seam and medium thick seam in our country at present, but its application effect in the thick Coal Seam and large section roadway is not satisfactory and the speed of roadway retained is slow. The 12-308 working face of Shangwan Coal Mine combine the new type hydraulic support obstructing gangue with the flexible template gob-side entry retaining technology and make the advancing speed of the 280.5m working face reached 15m/d. It makes the gob-side entry fast retaining in thick coal seam come true and the deformation of retained roadway is small and its application effect is good.