Mine drainage system was the necessary link of coal mine safety production. The problems in existing regulations and specifications of mine drainage system were pointed out through analysis. Combining with actual conditions of mines in Kailuan area, problems in normal drainage system and strong drainage system were explored and discussed especially for mines with complex hydrogeological conditions, and corresponding solutions were put forward. As a result, the submersible pump drainage system was used as design concept of mine drainage system considering mine actual conditions and years of drainage system design experience.