Abstract: A surgical instrument file system comprised of a screen on which the names and pictures of surgical instruments required for a surgical procedure are selectively displayed; surgical instruments to which a unique optically readable code mark such as a bar code is attached; a reader for reading the optically readable code mark; and a computer which stores the data about surgical instruments for the surgical procedure and into which the information from the optically readable code mark is inputted. The optically readable code mark on a surgical instrument is read by the reader and inputted into the computer, by which the read and inputted surgical instruments are successively identified on a screen, and finally the preparation of surgical instrument sets can be confirmed.