At present, the world's unprecedented changes are accelerating their evolution, with new technologies represented by artificial intelligence emerging rapidly and triggering changes and reshaping in various fields such as economy, society, and culture, pushing human society towards a new era of enhanced intelligence and multiple possibilities. Against this backdrop, the global urban system is undergoing a critical period of historical structural adjustment, which will inevitably be accompanied by the rise and decline of a group of cities. In order to adapt to the increasingly complex new trends and changes in development, China's global cities must maintain sufficient development vitality from a multidimensional spatiotemporal evolution perspective of global perspective, national height, and its own characteristics. We must adhere to the principle that people's cities serve the people, continuously inject new impetus, strengthen new functions, shape new structures, construct new mechanisms, and showcase new images, and follow the path of urban development with Chinese characteristics, Provide Chinese solutions for global urban iterative upgrading and sustainable development. Strengthening the organic vitality of global cities in the intertwined evolution of history. Looking at the global urban system, there are both long-standing and rapidly emerging cities. Among them, emerging cities in the period of rapid development often have relatively small historical burdens, relatively focused development goals, and sufficient vitality, but also face problems such as insufficient development balance and coordination. Older cities that are moving towards a relatively mature stage have to face prominent issues such as urban aging and population aging. It is urgent to carry out structural reforms such as organizational structure, industrial structure, spatial structure, and factor structure, and strive to find opportunities to open up new fields and tracks for development, constantly shaping new conditions and advantages for development, and promoting urban development to enter a new cycle of life. From the perspective of historical interweaving and evolution, building a dynamic global city requires attention to the following three dimensions: firstly, economic development capacity, whether it can achieve continuous economic growth, industrial structure upgrading, spatial layout optimization, development momentum enhancement, and green and intelligent level improvement. The second is the capacity for safe development, whether it can achieve the level of urban modernization governance, ecological environment carrying capacity, disaster response and adaptation capacity, and the continuous enhancement of industrial chain supply chain security resilience, and whether it can effectively respond to the impact of various external and internal risks. The third is the ability to share development, whether it can implement the concept of people-oriented and common prosperity, achieve high-quality supply of product services, cultural civilization, and ecological environment, better meet the people's yearning and pursuit for a better life, and continuously enhance the sense of gain, happiness, and security of people living in it. Enhancing the vitality of the core hub of global cities in the global urban network. In a constantly changing and rebalancing global urban system, the key to measuring the vitality or strength of a global city lies in whether the city's position as a hub in the global urban network is stable and constantly rising, and whether it has a powerful allocation function for global high-end factor resources. From the perspective of the global urban network, building a dynamic global city requires attention to the following three dimensions: firstly, agglomeration capacity, whether it can continuously gather global talent, technology, capital, data and other factor resources for the development of the city, and continuously optimize the factor supply structure according to the stage of urban development. The second is connectivity, whether it has a central transportation network, innovation network, service network, production network, and communication network, through the implementation of higher water supply