This research examines the effect of clay art therapy in the treatment of anxiety and depression in children growing up in complex family circumstances. The results were obtained through the analysis of qualitative and quantitative dana. The most important art therapy tool in exploring the therapeutic potential of clay is the clay field created using the Clay Field Therapy method. Four male children between the ages of 7 and 11 who grew up in complex family circumstances participate in the research. The sampling method is convenient. The data collected for this research are based on: a) monitoring children's activities while working with clay during of 10 sessions, once a week for a maximum of an hour and a half, b) children's self-assessment of anxiety and depression, anxiety in children was measured by the Beck Anxiety Inventory for children and adolescents, and depression measured using the Beck Depression Inventory for children and adolescents, c) parental assessment of the child's emotional state over the last month, using a self-assessment questionnaire, d) children's self-assessment of satisfaction with each session. The research hypotheses are as follows: a) clay art therapy treatment indicates a statistically significant reduction in the experience of child anxiety, b) clay art therapy treatment indicates a statistically significant reduction in the experience of child depression, c) clay art therapy treatment indicates a reduction in the assessed prevalence of emotional state and behaviors in children according to parents assessment. The results of this study examines that anxiety was statistically significant decrease in this sample after clay art therapy treatment, while for depression, a decrease was observed between the first and second measurements, but it was not statistically significant. Additionally, we cannot confirm that there was a decrease in the prevalence of emotional state and behavior in children according to parents assessment after clay art therapy treatment. These findings highlight the potential of clay art therapy treatment with children and families and emphasize the need for future studies with larger samples.