Under the new development pattern of dual circulation，China’ economy is being deeply transformed gradually and consumption economy is becoming the original driving force of economic growth. The central pulling function of CBD consumption is increasingly obvious. Based on the subject of “Promoting Transformation and Development by Consumption Upgrading”，the report makes a series of analysis which involve CBD transformation development index，the path to promote transformation development by upgrading CBD consumption in 2021and the actual practices in Beijing，Shanghai and other districts. By making quota measurement，path analysis and learning lessons from practice，the report has completed an inclusive presentation on the characteristics and path of consumption upgrading and CBD transformation development in China. Additionally，it proposes specific suggestive countermeasures on how to promote transformation development by upgrading consumption，such as collaboratively constructing the central international consumption district，systematically laying out holistic consumption maps and inspiring potential social consumption of CBD.