A luggage tag having a card case, a connecting part, and at least one cover is described. A first end of the cover is disposed with an engaging element, the engaging element is slightly larger than the body of the cover, two sides of the body of the cover each forms a locking corner at a position to which the engaging element is connected. The engaging element includes a groove or pressed line where the body can be lifted, which connects with the two sides thereof, and the cover is divided along the groove or pressed line into two parts, namely the engaging element and the body. The card case has at least one open face; a first end thereof corresponding to the engaging element includes an engaging cavity in a limiting unit. The engaging cavity corresponding to the locking corners is disposed with a lock, and the second end of the open face is disposed with a locking groove. When assembled, the cover will cover the open face thereby avoiding direct exposure of the information on the card.