In the context of the global epidemic，the four Southeast Asian countries are suffering from the impact of the pandemic，and the political and economic situation of each country also presents a series of new changes. Myanmar returned from civilian government to military rule，the Lao People’s Revolutionary Party elected a new central leadership，and Timor-Leste held its fifth presidential election since independence. Combodia remains stable. With the exception of Myanmar，the economies of the three Southeast Asian countries showed a trend of recovery，with domestic and foreign demand expanding and the growth rate of major industrial sectors turning from negative to positive. Myanmar’s economy has suffered a severe downturn due to domestic political turmoil and the ravaging epidemic. Recently，in the United Nations’ three-year review of the least developed countries，whether the four Southeast Asian countries meet the graduation standards and successfully “take off the hat” has aroused heated debate.