In order to identify trends in studies related to the emotions of autism spectrum disorders children and to provide directions for follow-up studies, this study analyzed the general features(release years, dependent variables) and detailed features(target features, intervention place, research methods, emotional vocabulary, utilization data, and intervention session) of 20 studies published in academic journals from 1979 to 2019. Studies have shown that since the 2000s, studies on the emotions of autism spectrum disorders children have begun in earnest and continued research has been conducted to date. Emotional understanding and emotional expression were studied relatively evenly for subordinate spokesmen, while the study subjects were the most studied among elementary school students, mostly in treatment rooms and special classes. In terms of research methods, group studies were the most frequently conducted with 12, and there were many studies that dealt with joy, good and sad in emotional vocabulary. 10 of the 20 studies used paintings as intermediary material, and the arbitration sessions ranged from 12 to 48 times.