In 2019，with Alberto Fernández elected as president，the left-wing party in Argentina regained power after a lapse of 4 years，but the the president-elect will face extremely difficulties in the future. Whether the debt negotiations with the IMF or various dilemmas in economic governance，will be the serious challenges for the new government. Argentina’s economy continued to decline in 2019. The Macri government had to abandon “market-oriented reforms”，strengthened its intervention in macroeconomy，restarted the methods used in the period of the former left-wing government，such as freezing prices，controlling foreign exchange，intervention in foreign exchange market，and increasing export taxes，but it was still difficult to stop the economy falling and the inflation rising. Under the impact of fiscal austerity and inflation，dissatisfaction among the people in Argentina was increasing. The Macri government issued a series of social policies to appease the people and win voters. However，the impacts of the economic recession on ordinary people，especially the middle-lower classes，was still very large. The change of foreign policy of the new government of Argentina will not only affect the integration in Latin America，but also change the relations between Argentina and Europe，USA and some Latin American countries.