Research on the essence of policy implementation is the basis for finding solutions. A circular city is founded on the concept of a circular economy, extending from the recycling of single substances to regional resource recycling development. Given limited energy and resource conditions, the emphasis lies in considering right from that source that at the end of a product’s service life substances can continue to enter their cycle of re-use and re-utilization. Meanwhile, residual substances can return to the industry and organisms as basic nutrients. The development of circular cities has to be multi-faceted synergetic promotion. Otherwise, it will be deviating from the meaning of the circular essence. In this study, the sustainable development of environment, economy, society and governance aspects were adopted as the starting point for exploring the connotation of the promotion of circular cites. The semi-structured expert interview was adopted as the research method. The pyramid principle was employed to carry out logical inference. The Fishbone Diagram was used to carry out time series analysis in order to ensure relevant requirements do not deviate from the mindset of circular essence during circular city planning. Finally, the 13 circular city planning solutions proposed in the research results and contribution can be specifically provided to agencies engaged in circular city planning and governance. They shall also serve as a reference for circular city solutions.