This paper aims to present the use of code glosses in Korean English users'' (KEU) academic writing. First, using Hyland’s (2007) model, we examine the frequency and type of code glosses (reformulation and exemplification markers) in six distinct fields of KEU''s academic writing. Second, we compare this data with Hyland’s native English speaker data. Analyzing humanities and science writings, this paper reveals that both areas use more reformulation markers than exemplification markers, and specifically, humanities departments use much more code glosses than science departments. When Korean academic writing is compared with research done on native English speakers,’ we can see that the latter use a relatively balanced mixture of code glosses with a greater variety of markers than the former does. Although each academic discipline has different communicative requirements, Korean English users need to balance their use of markers and use a more diverse range of code glosses. This study suggests that the different use and frequency of code glosses can help academic writers write about their fields more efficiently and effectively.