Locking type steel wire screw sleeve is a new type developed on the basis of common type steel wire screw sleeve. There are 1-2 circles of pentagon or hexagon in the middle part of the locking type steel wire screw sleeve. When the bolt is screwed into half of the threaded hole, the bolt head touches the locking ring. At this time, the steel wire screw sleeve applied force by tools has better locking performance and higher strength than other common locking devices. At the same time, it can be disassembled repeatedly.