Test device and method for detecting safety of lock

The invention discloses a test device for detecting safety of a lock, and the device comprises the following parts of a lock cylinder fixing device for fixing a plurality of lock cylinders; a clamp head for clamping a key; a driving device connected to the clamp head for driving the key in the clamp head to realize insertion and extraction and unlocking operations for the plurality of lock cylinders; and a correcting device located between the clamp head and the lock cylinder fixing device and comprising two clamping blocks for temporarily clamping the key, wherein the two clamping blocks correct the lateral position and deflection angle of the key to align the key with the key socket in the lock cylinder, the clamp head temporarily clamps the key between the two clamping blocks of the correcting device after clamping the key initially, and the clamp head secondarily clamps the key between the two clamping blocks and takes the key out of the two clamping blocks after the correction. The invention also disclos