The design of the magnetic lock is the same as that of an electromagnet. When current passes through the silicon steel sheet, the electromagnetic lock will generate a strong suction force to tightly absorb the adsorption iron plate to achieve the effect of locking the door. As long as there is a small current, the electromagnetic lock will generate a huge magnetic force. The access control system that controls the power supply of the electromagnetic lock will cut off the power after the person is correctly identified. The electromagnetic lock loses its suction force and the door can be opened. Supports face recognition, Bluetooth, fingerprint, access card, password and other methods to verify the door opening