The purpose of this study is to make a list of educational roots and affixes from loanwords which make up the word formations in Korean language. Frequency in use of the derivatives and compounds which are based on loanwords is high in modern Korean language. Accordingly, the roots and affixes from loanwords should be taught in order for Korean learners to satisfy their needs to improve their communicative competences in Korean language. So as to select the educational roots and affixes, the frequency in use of native speakers and the productivity in formation words are considered as key criteria. Firstly, 244 words which include 26 roots or affixes were selected from <신어 (2001)>, <신어 (2002)>, <신어 (2003)>, <신어 (2004)>, <신어 (2005)> by The National Institute of Korean Language and web news contents. Secondly, the survey including these 244 words was conducted to figure out their frequency in use of native speakers. Finally, between groups analysis was conducted to see if there is a significant difference in cognition and use between native speakers and advanced Korean learners to prove the educational necessity of the roots and affixes from loanwords. In conclusion, 6 roots and affixes were selected in order of the frequency in use in native speakers: ``-ple``, ``-ca``, ``party``, ``team``, ``goal`` and ``bag``. And 5 of them showed a significant difference in use between native speakers and advanced Korean learners. Some roots and affixes, such as ``-parazzi``, ``-tech``, ``day``, ``-かん``, which have been suggested as settled morphemes in Korean language by preceding studies, did not show high frequency in use.