This study aims to identify the status of the classification retrieval operation by investigating and analyzing the classification retrieval related to the books in the university libraries. The investigation concentrated on whether the classification retrieval service is provided, Access Method and classification retrieval level. The data was collected from 97 libraries where URL access was available during the period of survey in 100 libraries selected by the systematic sampling. As a result, while 92.8% of 97 libraries provided the classification retrieval service, 52.2% of it enabled the access to classification retrieval service only by the classification number and 47.8% by classification number and classification directory. Consequently, it was found that the retrieval environment in the libraries where the access was enabled only by classification number should be urgently improved for the activation of classification retrieval.