A slip processing device includes: an imaging unit that images an object; a barcode scanner that reads a barcode; and a processor configured to perform the following: causing the barcode scanner to scan a barcode on a slip to obtain an identification information on the slip; determining whether the obtaining of the identification information has succeeded; when the obtaining of the identification information has succeeded, causing the imaging unit to image the slip to obtain a slip image; and causing the identification information that has been obtained and the slip image that has been obtained to be stored in association with each other in a storage unit.