Poorly managed post-operative pain remains an issue for paediatric patients. Post-discharge telephone follow-up is used by an Australian Nurse Practitioner Acute Pain Service (NpAPS) to provide access to effective pain management post-discharge from hospital. This cross-sectional survey design study aimed to determine the pain levels of children following discharge and parent views on participation in their child's pain management and perceptions of support from the NpAPS. Parents completed the Parents' Postoperative Pain Measure-Short Form (PPPM-SF) and factors affecting parents' participation in children's pain management questionnaire (FPMQ). Results indicated that pain score was high, especially on the day of discharge and 24 hours post-discharge. Parents, despite feeling supported by the NpAPS, experienced uncertainty, emotional responses and expressed concerns about communication and coordination of care. The clinically significant pain levels of the majority of children on the day of discharge and day post-discharge from hospital are a concern. Worry and uncertainty among parents, particularly on the day and first night of discharge, suggest this transition period where responsibility of clinical management of pain is handed over to parents may require greater focus for parental support.