This study focuses on urban block public toilets and explores their renovation and design through literature review, field research, and questionnaire surveys. Taking the block near Daming Lake Scenic Area in Lixia District, Jinan City as an example, this study applies service design concepts to analyze touchpoints, stakeholders’ needs, and service processes of public toilets. It proposes renovation design principles and strategies aiming to enhance the service experience of public toilets and meet the diverse needs of different user groups.