The purpose of this study was to examine the effects of online group art therapy, utilizing photograph s, on the acculturation stress experienced by Chinese international students in Korea. The study empl oyed the SPSS 26.0 program to validdate the effectiveness of the therapy, and conducted an interpreti ve phenomenological study to understand the participants' experiences during the group art therapy sessions. Eight participants who fully attended the sessions were randomly selected from two experi mental groups, A and B, comprising a total of 24 Chinese graduate students studying in two universiti es in Seoul and one university in Busan, Gongju, Daegu, and Jeonju. Dynamic analysis and qualitative analysis, based on in-depth interviews, were conducted on the three participants who exhibited signif icant differences in pre- and post-test scores of acculturation stress. The online art therapy using photography was administered by a qualified art therapist, who was not the researcher, over a span of approximately one month from June 30 to July 26, 2023. The therapy consisted of 8 sessions, each lasting 90 minutes, conducted twice a week. The results of the study are as follows: Firstly, after participating in the group art therapy, the experimental group showed a notable decrease in total score on the Acculturation Stress Measurement Tool, as well as its subfactors, which included perceived discrimination, homesickness, perceived hostility, fear, culture shock, guilt, and others. This indicates that the online group art therapy had a positive effect in reducing acculturation stress. Secon dly, through open coding analysis, five major categories and 12 subcategories were derived, reflecting the participants' experiences during the therapy. These categories included ‘gradually adapting to the therapy sessions,’ ‘enjoying the freedom to express themselves easily through photography's advanta ges,’ ‘rediscovering and finding new meaning to forgotten or overlooked aspectsthrough photograph y,’ ‘gaining a sense of connection and comfort during the group art therapy sessions,’ and ‘discovering a new sense of self and envisioning the future’. Based on these findings, the significance and limitatio ns of this study were discussed.