A retrieval system for the conference papers with INIS output tapes was started in the Division of Technical Information, JAERI, at the end of 1972, and the current awareness service thereof has since been made in the form of a monthly bibliographic periodical entitled "Index of conference papers." The methods employed and information revealed are described, and also problems involved are discussed. Conference papers account for about one-fourth of the INIS data base, and 80% of the source literature is easily obtainable. The service may therefore be useful in the nuclear field.