The purpose of this study was to investigate loanword orthography and the actual condition of loanword pronunciation among university students. The research focused on the difference between loanword orthography and its pronunciation. Through this, this also attempted to look into usages that are regarded as standards in loanword orthography. Loanword orthography is based on the original sound principle, there is, however, a diversity of orthography because, in reality, language users employ a different orthography. Furthermore, in subsection (5) of loanword orthography, there is no definite range of common use. For this reason, it is not clear for us to judge whether it obeys the rules of loanword orthography or not and whether it is considered as common usages or not. In this study, loanword orthography and its actual pronunciation condition were examined and a total of 150 university students took part in. The result of this study shows that there were cases which were in discord with right form of loanword orthography and university students had higher adoption of wrong form. In relation to this finding, we need to consider these vocabularies as examples of common use, not a wrong form of loanword orthography. Another result showed that pronunciation of loanword showed a high rate of one type pronunciation. This implies that pronunciation which are widely used among language users can be considered as standard pronunciation. Thus, this research made an investigation an exact figure of loanword orthography and its pronunciation.