To provide a card holder for a hook capable of stopping malicious merchandise take-out by making it difficult to detach the card holder from a holder attaching bar.

This card holder 5 for the hook 1 for merchandise display comprises: an attaching piece 7 provided with at least one angled insertion hole 9 to be forcibly fitted to the upward tip part of the holder attaching bar 4A; a card carrier 10 composed of an attaching piece surrounding part 10A opened on the bottom surface so as to surround the attaching piece in a U shape and extended in the axial direction of the holder attaching bar and a card holding plate part 10B connected so as to be orthogonal to the attaching piece surrounding part and connected to the attaching piece 7 freely turnably by a pivot 13; and a torsion spring 14 mounted around the pivot 13 so as to impart spring loads for turning the card carrier 10 downwards and press-fixing the attaching piece surrounding part 10A of the card carrier 5 to the upper surface of the attaching piece 7.