China has stood at a new historical starting point, which has also attracted worldwide attention and evaluation. China's diplomacy will also face more and more difficulties and challenges, and diplomacy will also show that China has higher wisdom to meet the challenges. At the G20 Summit held in Hangzhou in September this year, China showed the world the development of China. At the same time, through the success of G20 in Hangzhou, the economy of Hangzhou and even the whole country will speed up again. With the development of economy and the promotion of international status, we should be soberly aware of the difficulties and challenges faced by China in the process of development. Just this year, the "Sade's entry into the South" advocated by the United States is still a huge difficulty and challenge facing South China. North Korea's too tough nuclear test has given a higher test and challenge. If China fails to display higher political wisdom on these issues, it will be ridiculed and condemned by developed countries, and the image established by China will be greatly affected.