With the development of the times, the global photovoltaic industry is on the rise, with China and the United States making more significant progress in the solar photovoltaic industry. So far, China has become the largest producer and application country of photovoltaic modules in the world. However, the first batch of solar panels in China entered its old age, and it is expected that the first batch will be retired by 2025, even though a large number of components have been replaced through technological upgrades. For the solar energy market in the United States, according to predictions, the proportion of renewable energy that can be produced in the country will triple between 2019 and 2050. However, expanding the proportion of renewable energy and bringing more effective energy is a huge challenge for both China and the United States. In this article, we will study and analyze the current and future trends of the solar energy industry in both countries.