A portable identification holder (100) includes a base (10), a substantially transparent cover (20), a sealing member (40) and a fastener (50). The cover (20) is connected to the base (10) to form a room (S) therein. A card (200) with information is received in the room (S) and read via the cover (20). The sealing member (40) is between the base (10) and the cover (20) surrounding the room (S). The fastener (50) is provided at the base (10) to fasten the base (10) to a specific object (300).
