The invention discloses an axial adjustable type lock plate bending device and method. The axial adjustable type lock plate bending device comprises a flat plate, wherein a screw perpendicular to theflat plate is fixedly arranged on the flat plate; a supporting sleeve sleeves the screw; threads matched with the screw are arranged inside the supporting sleeve; two regulating lever mounting holes which are perpendicularly crossed are formed in the upper part of the supporting sleeve; a regulating lever is detachably arranged in one regulating lever mounting hole; and a positioning column is arranged on the top of the supporting sleeve. The axial adjustable type lock plate bending device solves the problem that locking of the lock plate is uncompleted, and improves assembly efficiency.