In 2016，the new political landscape marked by combination of traditional and new generations of leadership was formed in the 7th Congress of the Communist Party of Cuba. “The conceptualization of the economic and social model of Cuba’s socialist development” confirms the strategic objective of “promoting and strengthening the construction of a sovereign，independent，democratic，prosperous and sustainable socialist country”. The economic performance was still poor，but the actualization process continued. The government maintained investment in health care and education，improved communication services and environmental protection，however，the shortage of commodity and low income level still affect social stability. To make things worse，population aging poses a new problem to Cuban economy. Cuba is very active in its diplomatic activities，with its relation with U.S. advancing steadily，though Trump’s election increased uncertainty. It also achieved significant progress in its relations with EU，meanwhile maintained good relation with traditional friend countries.