The purpose of this study was to explore and describe the experience of caregivers with mentally ill children. The sample consists of 4 participants who care for their children with mentally ill. They were asked open-ended questions in order for them to talk about their experiences. With permission of the subjects, the interviews were recorded and transcribed. The methodology utilized was the Colaizzi's phonomenological approach. The interview data was organized by themes into 5 categories : anguish, positive emotion, maturation, acceptance of the disease, and seeking information. These 5 themes were further categorized into 4 main groups : emotional impact, spiritual maturation, adapting to the illness, and seeking support needs. The results of this study have clinical and theoretical implications not only for psychiatric nursing in Korea but also for all clinicians working with the families of the mentally ill.