Hospitalization is a condition of a person because of illness and hospital admission. Research objectives determine the influence of audio recorded guided imagery method to stress of hospitalization in school-age children in hospital in Palu. Quasi-experimental research design with pre and post test design with control group. The sample of children aged 7-12 years were 26 respondents intervention group and 26 control group respondents. Intervention is the method of audio recorded guided imagery, three times a day for two days (one session equal to15 minutes). The results showed the significant difference mean stress score of hospitalization after the intervention (Pv = 0.004). No contribution of confounding variables. Based on these results, audio recorded guided imagery intervention can be applied to care the sick pediatric in hospital.