Abstract: Based on the current situation of obsolescence in equipments and backward in technology of hoist control system in No.8 Coal Mine of Pingdingshan Coal Corporation Group, the paper analyzed problems of insufficiency of misorientation protection and hidden danger of frequent failure of slowdown in mine hoist control system, and put forward corresponding technology reform programs and measures of misorientation protection and compulsory deceleration, which ensure safe and reliable operation of hoist.