This study investigated general problems concerning the tourism field in the KDC 6th edition based comparative analysis academic characteristics and classification system, and suggested on some ideas for the improvements of them. Results of the study are summarized as follows. First, academic field of tourism is generally divided into a general tourism, tourists, tourism attraction, and tourism media, but classification system of tourism is limited to parts of tourism attraction and a general tourism. Tourism attraction and tourism media are dispersed among the subject. Second, I analyzed on tourism from the collection database at the National Library of Korea. Based on analysis of the data. the keyword frequency of tourism management, type, development, psychology, industry, and convention etc. was relatively high. Third, modified classification of items was basically performed through the academic characteristics of the tourism and the keyword analysis, and maintaining the existing KDC classification system caused less confusion as much as possible. Also, based on this matter was added to the relative indexes.