The purpose of this study was to verify the effect of group art therapy using procedural memory on memory and self-esteem of elderly patients with mild dementia. The study subjects lived in H nursing hospital in G-city, and 18 elderly patients with dementia who were selected based on havings early senile dementia and who revealed their intention to participate were randomly assigned to either the experimental or control group. During the study period, from November 4, 2019, to December 12, 2019, group art therapy was conducted using 12 procedural memory tests, including pre- and post-tests; therapy occurred twice a week, 60 minutes per session. To verify the effectiveness, the Seoul Verbal Learning Test and the Rey Complex Figure Test were used as memory test tools, and Rosenberg s self-esteem scale was used to assess participants self-esteem. The collected data was statistically analyzed using the SPSS program version 24.0. In order to conduct quantitative analysis, individual changes in memory and self-esteem were described based on observations of subjects language expressions and behaviors during group art therapy. As a result of verifying the effect of group art therapy using procedural memory on the memory and self-esteem of elderly patients with mild dementia, there was a positive effect on memory, especially visual memory, in the experimental group compared to the control group, and the therapy also appeared to significantly improve self-esteem.