Abstract: In order to evaluate the safety and reliability of mining above the confined aquifer in Sun Tuan coal mine,this paper established the model of reliability analysis of the No.10 seam floor.By considering thickness of water-resisting floor,rock bulk density and tensile strength as random variables,the Slisalif formula was used to establish the limit state equation.Based on the study of probability model of random variables,JC method,optimization method and Monte Carlo method were used to calculate...