Purpose: This study aimed to develop an untact visit service based on an application that can be utilized in the pediatric intensive care unit (PICU) during COVID-19. Methods: This study adopted the double diamond process of service design comprising the discovery, defining, and development stages. Results: We developed an untact visit service based on an application that considered the child’s status, schedule, photo, and video messages, and so on. Moreover, we derived a service flow regarding the required roles and the type of flow shown between each stakeholder. Conclusion Considering the ongoing pandemic, the untact visit service is designed to increase rapport and participation of parents, share the child’s information in real-time, and provide one-stop service without increasing healthcare providers’ work. It will be a useful visit service that can be applied and evaluated in various hospital settings and the PICU.