Abstract: In view of the problem of easily visible rock legacy blanking zone in the construction of bedding hole drilling in the fault group area of medium thick coal seams,this study analyzes the influence of fault location and fault drop on hole drilling design parameters,as well as the impact of hole drilling seeing coal and rock conditions and debris composition on hole drilling construction.A fully covered construction method for bedding hole drilling in the fault group of medium thick coal seams is proposed and applied in practice in the 21212 stoping working face.The practice shows that if the fault is exposed and the drop is less than the coal thickness,hole drilling construction can directly penetrate the fault and cover the upper and lower coal seams;If the fault is exposed and the drop is greater than the coal thickness and the fault is not exposed,hole drilling construction can first detect and analyze the development situation of the upper and lower panels,and then adjust the hole opening position and dip angle to cover the upper and lower coal seams of the fault.