Research on the Planning and Design of Chongqing Old City Renewal Based on Health Utility

: In the face of global natural disasters, epidemics and other related emergencies, the ecological space is threatened, and the emergency response capability of the old city is particularly important. This paper takes the research on the green and low-carbon micro-renovation design of the old city space in Chongqing as an example, based on the implementation strategy of "carbon source sequencing-index parameters-renovation technology-implementation management". Combined with the influencing factors of spatial carbon source index and the current carbon emission in the old city, the relevant evaluation system is established, which provides reference for the development direction of green and low carbon, circular economy and eco-city in China.