Dashe mine was the kind of coal and gas outburst mine, construction of high level boreholes for gas extraction was an effective solution to No.2 coal seam gas. The construction layer of high drilling was the roof sandstone of No. 2 coal seam. Considering high rock hardness, rig powers and torques of SGZ-ID, ZYW-1000/135, ZYW-1900R and other models of drilling rig showed that drilling footage of these drilling rigs was less than 30m. And usually depth of hole construction couldn’t meet the design requirements. Therefore, ZLJ-1000/1200L crawler drill was used in 92622 transport lane for high level borehole construction. After field service, the disadvantages of this crawler drill was made technological improvement, which overcame various problems of previous rig constructions. At the same time,the results showed that this rig had obvious economic benefits and safety effects.