The bibliographic records have been built up following the Digital Library System (DLS) cataloging rules in the school libraries. But it is hard to use DLS cataloging rule as the standardization guidelines in building up the bibliographic records in school libraries because it is not the detailed cataloging rules, has inconsistency in its own rules, and disagrees with KCR4 rules. Therefore, this study is to suggest the new amendment for DLS cataloging rule to improve the bibliographic records quality and to produce the standardized bibliographic records. To grasp the problems of the DLS cataloging rules, DLS cataloging rule was analyzed with KCR4 rule and the interviews were conducted to the 9 school librarian that have experienced over 3 years. The result showed that it was needed to correct the terms to accord with KCR4, and to amend the DLS rule in each area.