The utility model provides a section of jurisdiction mould dismouting spanner, includes sleeve and long handle, long handle's one end suit on the sleeve, it is in that to form the axial spacing with the sleeve on telescopic axial direction, cooperation structural formation that long handle's this end and sleeve pass through pawl and gearing is just reversing two -way can the change formula drive to be connected, the pawl is installed on long handle, the ratchet is coaxial to be fixed on the sleeve, be provided with the driving ring with one side of long handle coupling part outside the sleeve, driving ring and sleeve form fixed connection through many connecting rods along the circumferencial direction equipartition, are fixed with the drive shaft that sets up along axial direction in the outside of driving ring, and the cover is equipped with the axle sleeve in the drive shaft, are equipped with the end dog at the tip of drive shaft, and the drive shaft forms the short hand handle with the cooperation of axle sleeve, the distance of long handle's the other end to sleeve center pin is L1, and the distance of center pin to the sleeve center pin of short hand handle is L2, L2 is 0.15~0.4 times of L1. This section of jurisdiction mould dismouting spanner has realized bolt quick assembly disassembly, and has had a laborsaving advantage of dismouting.