A nail printing apparatus comprising: a print head configured to perform printing on a nail of one of a finger of a hand and a toe of a foot; and a processor configured to detect, from a nail image captured of the nail of one of the finger and the toe, a nail area that is a target of the printing performed by the print head; wherein the processor is further configured to: divide the nail area into a first area on a nail root side of the nail and a second area on a nail free edge side of the nail to store information of the first area in a memory; and, in accordance that the information of the first area is stored in the memory, when detecting the nail area from the nail image, forgo detecting the first area, and reads out the information of the first area stored in the memory.