To provide a finger holding member capable of securely holding fingers or nails of a user in certain positions and a nail printer.

The whole finger holding member 6 in a condition where a plurality of inserted fingers are held by a finger holding part 61 is inserted into a finger inserting part 20a of the nail print device 1, and photographing or others are carried out to the nail parts with the respective fingers securely held in the certain positions by the finger holding part 61.