This study examines the domestic studies on the subtypes of ADHD and identifies the research trends
and suggests future direction and suggestions for related research. To do this, we conducted a content
analysis of 30 papers published in Korean journals from 2000 to 2017 among the studies related to
ADHD subtypes studied in Korea. Through this study, we reviewed the status of thesis publication by
ADHD subtypes, current status by academic journals, status by research topic, research methods, and
research subjects. The main results of this study are as follows. First, there were 30 studies on domestic
ADHD subtypes research in Korea from 2000 to 2017, and the most active research was conducted in
the mid - 2000s. Second, through the analysis of the research status by the field of journals, it was
confirmed that the research on the subtypes of ADHD was conducted mainly in psychology and
counseling fields including the psychology journal, and special fields in the fields of pediatrics and
adolescent medicine. Third, it was confirmed that there are a lot of research themes in definition of the
subtypes of ADHD, discrimination, concept identification, and comparison of differences according to
subtypes. Fourth, in the research method, mainly research and experimental research were carried out, and
the majority of the subjects were kids the study subjects. Finally, in the study subjects with ADHD
diagnosis, subjects with ADHD (experimental group) and general subjects (control group) were the main
researchers, and subjects with ADHD symptoms or tendency were also studied. Finally, based on the
results of this study, implications, limitations, and future direction of future research were discussed.