This study was conducted to understand the trend of test instruments used in music therapy research for the elderly with dementia in Korea. A total of 73 academic journals and thesis papers published from 1997 to August 2021 were selected according to the selection criteria. The data analyzed the total number and frequency of test instruments used in the analysis paper, the number and frequency of test instruments for each purpose of use (subject selection, effect verification, descriptive survey), trends by age, and the number and frequency of test tools by evaluation area. Using IBM SPSS Statistics 25, the analysis data was statistically processed into frequency analysis, multiple response frequency analysis, and multiple response cross-analysis. As a result of the study, a total of 82 instruments were used 209 times, and according to the purpose of use, they were classified into subject selection, effectiveness verification, and descriptive surveys. From the beginning to recently, the Mini-Mental State Examination(MMSE) type was the most frequently and continuously used, with a higher rate than the effectiveness test in the selection of subjects. This indicates that more various test tools were used than the selection of subjects in effectiveness verification. As a result of the analysis by evaluation area, cognitive domain test instruments were most frequently used in all subjects selection, effectiveness verification, and descriptive surveys and psychological emotions were also heavily used in effectiveness verification. Through the results of the study, we would like to present basic data for the selection and utilization of test instruments in clinical and research on music therapy for the elderly with dementia.