Bag lock

The invention discloses a bag lock. The bag lock comprises a base, a surface shell, an elastic wire device and a power supply device; accommodating space is formed between the base and the surface shell; the base is fixed on a bag with a mounting hole; a sliding push button, an upper control groove, a customs lock device, a lower control groove and an elastic wire buckle are arranged on the surface of the surface shell in sequence; an upper latch, a lower latch and an elastic block for returning a latch module are arranged in the accommodating space; the upper latch is matched with the upper control groove of the surface shell, and is used for locking a zipper head; the lower latch is matched with the lower control groove of the surface shell, and is used for locking the elastic wire buckle; a lock cylinder rotating shaft, a customs lock main body, the elastic wire device and the power supply device are arranged in the accommodating space; and the lock cylinder rotating shaft is linkedwith the customs lock ma