This book is a comprehensive exploration of endogenous community building, aiming to investigate how to create a vibrant, service-integrated, and sustainable community through collective impact approaches. It a guide to social innovation that combines theory and practical application. In terms of theory, it constructs concepts such as endogenous community, endogenous design system, life project platform and enabling ecosystem. In practice, it offers design methods and a toolkit for collective impact to enhance community resilience and capacity through service co-creation. This book provides readers with a systematic guide to endogenous community design, ranging from conceptual understanding and theoretical models to practical methodologies. Its aim is to build a sociotechnical system from the bottom-up to address complex issues. This book is ideal for community leaders, government officials, NGOs, urban planners, social innovators, and anyone passionate about sustainable community development.