Abstract: In order to conduct the development and utilization of coal under buildings，while protecting the safety of ground buildings,taking the industrial square of the 2103 working face of a mine in Handan mining area as the study area,the surface deformation is predicted by using the probability integration method,and the evaluation of the main building damage grade is done,besides that,some relative suggestions about reasonable exploitation are given.The study results show that the main buildings of the industrial square are affected by the surface deformation in different levels,the damage grade of dormitory is Ⅲ level,the damage grade of canteen and coal bunker is Ⅱ level,and the damage grade of the machine repair shop is Ⅰlevel.The above evaluation results is basically consistent with the surface monitoring results,which further indicated that the evaluation results of this paper is reliable.

Key words: Coal mining under buildings, Probability integral method, Deformation predictio, Tilt monitoring