An anti-theft connector head structure includes at least a connector head, a latch lock piece, a fastening ring, and a protection sleeve. On a side of a main body of the connector head is disposed a first connector end, on the other side of the main body is disposed a second connector end. The latch lock piece is a flexible wire body, a tail portion of a movable end on one side of the latch lock piece is provided with a buckle, on the other side of the latch lock piece is a fixed end, disposed on the main body of the connector head. In a center of the fastening ring is provided with a connector seat, connected and fixed to a fixed point. In the protection sleeve is provided with a chamber, to receive the fastening ring and the buckle.