People’s livelihood urbanization with improving people’s livelihood as the fundamental purpose’conforms to the essential requirements of urbanization development. The establishment of China’s people’s livelihood urbanization needs a comprehensive support system. However, the social conflicts, imbalanced economic development, resource shortage, ecological deterioration affect the process of people’s livelihood urbanization. Therefore, from the perspective of coordinated development of complex systems, this paper constructs a support system of China’s livelihood-based urbanization based on the requirements of social harmony, economy, efficiency, resource saving and environment-friendliness from the aspects of society, economy, resources and environment. It also proposes the corresponding safeguard measures.