The power battery industry cluster has become an important driving force for the transformation and upgrading of industries in related regions, and the common laws behind its successful practice are worth learning from. Power batteries are known as the heart of electric new energy vehicles and are widely used in fields such as ships, engineering machinery, low altitude economy, and distributed energy storage. According to statistics from the China Automotive Power Battery Industry Innovation Alliance, by 2025, the cumulative production of power and energy storage batteries in China will reach 1755.6 GWh, a year-on-year increase of 60.1%; Among them, the domestic sales volume of power batteries was 1200.9 GWh, a year-on-year increase of 51.8%. Related studies have shown that China's power battery production accounts for over 60% of the world's total, and it is in a leading position in both market share and technological level. The power battery industry in China presents distinct cluster development characteristics, driven by three factors. Firstly, the industrial chain is long and requires high levels of collaboration. From the mining and extraction of mineral resources such as lithium, cobalt, and nickel in the upstream, to the assembly and manufacturing of positive and negative electrode materials, electrolytes, separators, and battery cells in the midstream, as well as the development of modules and battery management systems, to downstream vehicle applications, charging equipment, and battery recycling and reuse, each link is interrelated and forms a complex industrial network, which places extremely high demands on the collaborative efficiency of the entire chain. Secondly, technology iteration is fast and market competition is fierce. Whether in electrochemical systems or structural packaging forms, technology is rapidly evolving. This continuous iteration injects new vitality into the development of the industry, driving the power battery industry to a higher level, while also putting enormous pressure on enterprises to innovate and compete in the market. Thirdly, high investment intensity and significant cyclical fluctuations. The power battery industry is a typical capital intensive industry that requires significant initial investment and fixed asset construction. At the same time, upstream raw material prices and downstream power battery loading prices are facing strong cyclical fluctuations. Due to these characteristics, cluster development has become an inevitable choice for the power battery industry. There are many advantages of industrial clusters, such as promoting vertical integration and localized collaboration of the industrial chain, significantly improving the overall operational efficiency and resilience of the industry. For example, empowering each other between technological innovation and industrial application, accelerating the collective breakthroughs of different technological routes in various links, thus forming an ecosystem of risk sharing and complementary capabilities, and helping local enterprises better cope with market fluctuations and external uncertainties. Nowadays, the power battery industry cluster has become an important driving force for the transformation and upgrading of industries in related regions. Although resource endowments and development paths vary in different regions, there are some common patterns behind their successful practices that are worth learning from. Emphasize the leading role of the chain owner enterprise. The common feature of high-tech manufacturing industry is the coexistence of refined division of labor and vertical integration. Chain owner enterprises are not only integrators of upstream and downstream industrial chains, but also often setters of technical standards and leaders in the construction of industrial ecosystems. The cluster development of industries in a region cannot be achieved without the guidance and drive of the chain owner enterprises. Taking the power battery industry as an example, the settlement of industry giants such as CATL, BYD, and Zhongchuang Aviation in a region not only brings about the output value, employment, and tax revenue directly created by the enterprise itself, but also attracts upstream and downstream supporting enterprises to gather, exerting the cluster effect of "introducing one and driving one", and promoting the rapid enrichment of the local related industrial ecology. In fact, the power battery industry is not an isolated case, and similar situations have been verified in many industries such as automobiles, electronic information, integrated circuits, and biomedicine. Establish a collaborative mechanism between an efficient market and a proactive government. The prosperous development of regional industrial clusters relies on the efficient role of the market in resource allocation, production organization, and business model development, as well as the active empowerment of the government in platform building, cost reduction, and environmental optimization. Looking at the successful cases of power battery industry clusters in various regions, it can be seen that the role of local governments is no longer simply to attract investment and provide policy incentives, but has been upgraded to a comprehensive "industrial ecological cultivator", providing systematic support in multiple dimensions such as top-level design, industrial park construction, infrastructure support, application scenario development, talent and skill training, and investment and financing support. Promote the deep integration of technological innovation and industrial innovation. The competition between regional industrial clusters is not only a competition of output and market share, but also a competition of technological innovation and industrial innovation capabilities. For industries like power batteries that are rapidly iterating, it is necessary to establish an innovation chain and industry chain cycle from basic research to technology pilot testing, and then from mass production application to market feedback in order to maintain a leading advantage in fierce market competition. In other words, regional industrial clusters should not only be clusters of production and manufacturing, but also innovation clusters. Relevant regions should closely focus on the actual needs of industrial development, layout and construct a regional scientific and technological innovation system, connect the two-way transmission chain between scientific and technological innovation and industrial innovation, and form a regional innovation ecology where industry, academia, and research are interconnected and mutually promoted. Author: Feng Ming (Researcher at the Institute of Quantitative Economics and Technical Economics, Chinese Academy of Social Sciences)