Japan has been actively developing minimally invasive surgeries that can guarantee the prognosis of patients in lung cancer treatment, and has also been trying to explore advanced lung cancer treatment technologies, such as heavy ion therapy, proton therapy and tomotherapy, which have become a big hit in recent years. Among them, heavy ion and proton radiotherapy are the advanced radiotherapy methods for treating tumors today, and their clinical effects can be comparable to surgery. However, it is also believed that with the development of domestic technology, lung cancer treatment in China will also have better results in the future.