This study reviews the changes that special-purpose Korean language learners go through during their language courses, in terms of self-esteem, self-efficacy, and anxiety, which are among the affective factors in learning languages. It also aims to provide basic data that may be used to improve Korean language teaching. The participants were individuals learning Korean at K university for academic and S company for job purposes. The results revealed that self-esteem is more likely to change for job-purpose learners than for academic-purpose learners. The latter group experiences a slightly higher level of anxiety in the earlier stages of learning, and the former group experiences anxiety in later stages. Academic-purpose learners show highly increasing self-efficacy as they undergo several learning courses, while the self-efficacy of the job-purpose learners remains unchanged. Both groups showed low levels of anxiety when self-esteem and self-efficacy were high. Changes were identified during the fourth and sixth weeks of the Korean language-learning period. Based on these results, it is necessary to develop a teaching and learning strategy, and to use appropriate language learning tasks.(Pyeongtaek University)