Abstract: According to the problem that data analysis method for safety monitoring of the shaft lining is not clear, based on the methods of the equivalent such as Lame formula and reinforced concrete elastic modulus, we research calculation method about external force of the inner wall of main shaft about reinforced concrete shaft lining at Dahaize Coal Mine, and present a method about actual force of the shaft lining by the existing sensor monitoring data of the safety monitoring subject, and study the early warning value of shaft linings and the division method of the alarm value. The results show that the actual stress on the inner wall of the 561 meters is between the design value of 35% in Dahaize Coal Mine and the overall stress is in the safety range.