This study used qualitative case study methods to analyze contextual experiences regarding the expriences of elderly people living alone who have lost their spouses, as expressed through mourning group art therapy. In the case of this study, six elderly people living alone whose spouses passed away were selected as subject of the study. A total of eight weekly mourning group art treatments were conducted in January and February 2020, and case studies were compiled from the observation of each participant. The experience of mourning group art therapy was summarized as “a stable mind within the group,” “a mourning revealed by art therapy,” “a picture that comforts life,” “growth meeting as a group,” and ”a space of memory for the deceased.” Through this, mourning group art therapy expanded the space for mourning and healing, and it was found that in the process of collective art therapy, the bereaved elderly experienced self-growth and reflection beyond overcoming their sense of loss. Based on these results, the implications and limitations of this study are discussed.