Based on the theoretical framework of family stress perception (Mu & Tomlinson, 1997), using a modified Colaizzi (1978) phenomenological approach, the purpose of this study was to investigate parents' coping patterns resulting from parental awareness of family dynamics and interactions when their child was admitted to a pediatric intensive care unit. Interview data were collected from 14 families. Criteria for selected subjects were the child being first time admitted to PICU, absence of chronic illness, residence in the Big Taipei area. A semi-structured interview guideline was used with both parents participating in a 30-60 minute tape-recorded interview. The results show that the parents' coping patterns is an interpersonal transition experience which includes parents' coping patterns toward the child (participating experience) and the siblings (transform the parenting experience). The results of this study provide the background for nursing interventions to empower parents to focus on the essence of health related family stress experience.