In 2013 Brazil witnessed the Mensal？o scandal trial and massive protests，which resulted in political uncertainties. The massive protests in June caused by hike of public transport fares are especially noteworthy that it reveals that Brazil is still facing some deeply rooted contradictions in the process of social transformation. The GDP gained a moderate growth at 2.4%，failing to reach the government’s target. Income distribution and social polarization continued to improve thanks to the implementation of social inclusion policies. The U.S.cyber-spying against Brazil deepened Brazil’s distrust of the United States. Brazil tried to accelerate the free trade negotiation between the Mercosur and the European Union to expand its export of agricultural goods to Europe.