Abstract: For the problems of ventilation and gas drainage during gas inrush at working face of thin coal seam,the industrial trial studies of the low-level borehole technique were conducted in return of working face No.1205.Through analyzing the outcomes of the trial,it concludes that the low-level borehole in return technique can effectively prevent gas level from exceeding gas limit at top face corner and gas inrush at working face,and therefore,reduce the ventilation burden.In addition,the study identifies the problems in the study of low-level borehole in return technique and provides the suggestion for the improvement on the industrial trial in the future.The study shows that the low-level borehole in air return road technique for gas control are feasible.