In view of the coal roadway， the high stress roadway and other small section roadways in the soft outburst coal seams in China’s coal mines， as well as the complex drilling conditions in narrow space， such as frequent giving way in the belt transportation roadway， by-passing of the roadway at work by the drill， and in light of the existing difficulties in movement and alignment of the drill in the coal mine drilling field， ZLY2500L crawler tunnel drill for coal mines is developed. At present， the commonly used containerized crawler drill has such defects： it can’t highly integrate underground mobility， compactness and high safety for operators； thus， leading to low gas drainage drilling efficiency， and poor adaptability to the complex drilling field and mine conditions. ZLY2500L drill can effectively improve drilling efficiency in small and medium-sized coal mines， increase mining output and reduce the labor intensity. It can be used for cross-seam and in-seam gas drainage drilling， water exploration and drainage， floor grouting and other drilling work. This paper mainly introduces the main technical parameters， the structural layout features and the hydraulic system of ZLY2500L crawler tunnel drill for coal mines. The test shows that it has a good application prospect for drilling in small and medium-sized coal mines.