Abstract: Based on the drilling arrangement (unilateral and bilateral arrangement) and extraction time and, the first mining face of Huoerxinhe Mine was divided into two assessment units, and the gas pre-drainage process, pre-drainage effect, evaluation indicators and evaluation results of two units were analyzed. According to the evaluation results of pre-drainage effect, combined with mine outburst law and the actual situation of "pumping, driving, mining" deployment, the problems of drilling gas pre-drainage work in this mining face were analyzed, and the solutions were proposed.