Abstract: Classification and evaluation of mine hydrogeological condition are important tasks for water hazard control in mines. Through the study of the complex mine hydrogeological conditions, the evaluation mechanism and the present situation of classification and evaluation of mine hydrogeological conditions at home and abroad, the paper gave the basis, plan for classification of mine hydrogeological conditions, conducted concrete classification. It described the characteristics of different hydrogeological conditions. On the basis of classification results and influencing factors, the paper presented in detail the index, content, methods for evaluation of mine hydrogeological conditions. The hydrogeological conditions in Yaoqiao mine in Datun were classified as an example, providing a guide for the control of water hazards in similar mines.