Since 2021, the demand for new energy vehicles in China has surged, and the sales and ownership of electric vehicles have increased, which has led to the growth of demand for charging piles. With the support and subsidies from China's "new infrastructure" and "stable growth" policies, it is expected that the growth rate of new energy charging piles will remain high. According to China Electric Vehicle Charging Infrastructure Promotion Alliance, China's charging pile market size increased from 7.2 billion yuan in 2017 to 41.87 billion yuan in 2021, with a CAGR of 42.2%. 2025 charging pile market size is expected to reach 210 billion yuan, with a 4-year CAGR of 50% expected to grow at a high rate. According to the data of Charging Union, the car-pile ratio will rise to 3:1 when the sales of new energy vehicles explode in 2021, which is still far from the target of 2:1 by 2030 proposed by National Energy Administration. 1) According to the data of Charging Union, China's charging pile market will be about 220 billion yuan in 2025. 2) We calculate in the following way: If we take the forecast of domestic new energy vehicle ownership of 26.72 million units in 2025 by Ai Media Consulting, the market size of charging pile is expected to reach 210 billion yuan in 2025. (2) We calculate as follows: If we take the domestic new energy vehicle retention volume of 26.72 million units in 2025 as forecasted by Ai Media Consulting, and calculate with the target vehicle-pile ratio of 2:1, corresponding to 13.36 million charging piles, assuming that 35% of them are DC piles and 65% are AC piles, and the value of a single DC pile is RMB 38,000 and a single AC pile is RMB 4,000, the charging pile market is expected to reach RMB 212.6 billion in 2025. Combined with the above charging alliance data and our measurement data, the measured data is 212.6 billion yuan, compared with 41.87 billion yuan in 2021, with a 4-year CAGR of 50%, reflecting that the increase in China's new energy vehicle ownership will force the development of charging infrastructure, and the charging pile market is expected to continue to maintain high growth.