There is provided a method of recording an image by causing a subject to truly coincide with data relating to the subject. In a finished work recording method using image data by obtaining a product to be recorded and work contents to the product to be recorded as a work recording image, RFID tags 60 (RFID tags 60a, 60b) in each of which inherent tag data is recorded are attached to the product to be recorded and to the work recording worker. Thereafter, whether the tag data are true to the image data of a subject to be worked is determined by comparing a time difference between the time at which the tag data recorded in the RFID tag 60a is read and the time at which the image data of the product to be recorded is obtained with a preset specified time. When it is determined that the tag data are truly associated with the image data, the image data associated with the tag data is recorded as a finished work. In contrast, it is determined that the tag data are falsely associated with the image data, the image data and the tag data are discarded.