In recent years, new energy vehicles have become the new "window" of the automotive industry. In particular, under the encouragement of the state to provide subsidies, many enterprises hope to catch up with this class of windmills. For a time, various new car manufacturers have emerged one after another. Undoubtedly, the wave of new energy-building vehicles has expanded the total number of vehicles, but some enterprises are eager to seize the market and obtain state financial subsidies, while ignoring the efforts in industrial upgrading and carrying out a large number of low-level redundant construction, resulting in overcapacity. The hidden worry of the waste of resources, this is undoubtedly a bit off.