Unlocking tool for blade lock and unlocking method based on unlocking tool

The invention relates to an unlocking tool for a blade lock and an unlocking method based on the unlocking tool. The unlocking tool comprises a positioning seat and a handle part arranged at the rear end of the positioning seat. An inner groove is formed in one side of the front face of the positioning seat in the length direction of the positioning seat, a sliding groove is formed in the other side of the front face of the positioning seat, a mounting plate is fixedly arranged at the rear end of the sliding groove, one end of a push rod is movably connected into the sliding groove, a handle part is fixedly arranged at the other end of the push rod, and the push rod moves along the sliding groove. The opening tool is convenient to install, the thin steel sheet moves in the sliding way, the handle part is used for rotating the push rod, the rear end of the push rod is fixed through the handle part, and therefore the push rod is driven to slide and rotate in the sliding way, the thin steel sheet in the push rod