According to the prevention and control of coal mine water regulations,there are four qualitative indicators in the index of classification of Mine hydrogeology type,and it is fuzzy to use conventional method to determine the mine hydrogeology type.In order to reduce the error of the evaluation results,this paper uses the method of fuzzy comprehensive evaluation to determine the mine hydrogeology type by analyzing the hydrological geological conditions.The result is accurate and may provide references for the work of water hazard prevention of mine.