A pick-resistant lock system includes a locking means. The locking means includes a displacement sensor for sensing displacement so as to generate a displacement signal, the displacement sensor comprising a micro electromechanical gyroscope, a second counterpart, a second alarm, and a second control unit for receiving the displacement signal so as to start the alarm. A key includes a control switch, a second counterpart corresponding to the second counterpart, a second alarm, and a second control unit for receiving the displacement signal transmitted from the locking means so as to start the second alarm.