Releasing tool for hydraulic suspension packer

The utility model discloses a releasing tool for a hydraulic suspension packer. The releasing tool comprises a first joint, a ball seat, a limiting ring, a locking claw, a reversal ring, a lifting drum, a sealing head, a tie-back sleeve and a second joint, wherein one end of the ball seat is connected with the first joint in a slidable sealing manner, and a limiting step is arranged at the other end of the ball seat; the ball seat and the first joint are axially fixed through a ball seat shear pin; the limiting ring is sheathed at the limiting step of the ball seat; the locking claw is sheathed outside the ball seat, one end of the locking claw is connected with the first joint through a T-shaped button, and the claw part of the other end of the locking claw is pushed against the outer diameter of the limiting ring; the reversal ring is sheathed outside the locking claw, and the claw part of the locking claw is pushed against the end part of the reversal ring; the lifting drum is sheathed outside the reversal ring and is fixed with the reversal ring through a reversal shear pin; one end of the sealing head is connected with the ball seat through the T-shaped button; the tie-back sleeve is sheathed outside the sealing head, one end of the tie-back sleeve is connected with the lifting drum through the T-shaped button, and a second end of the tie-back sleeve is connected with the sealing head in a slidable sealing manner; and the second joint is connected with the tie-back sleeve through the T-shaped button. The releasing tool has high releasing success rate.