After the overwhelmingly victory in the presidential campaign, President Tsai Yin-wen takes the presidency since May 20, 2016. Different from the president Ma, the principle of her cross-strait policy is to maintain the status quo according to the ROC Constitution, unwilling to accept publicly the 1992 Consensus publicly. Therefore after she took office, some changes are expected in the cross-strait relations between Mainland China and Taiwan. Facing the previous reactions of mainland China in front of the reluctant of President Tsai, will happen again the diplomatic competition in the number of ally countries during the era of Lee Teng-hui and Chen Sui-bian? Will mainland China intend to seize more countries who maintain diplomatic relations with Taiwan in order to press Tsai to accept closer cross-strait relations? Will those diplomatic allies of Taiwan in Latin America accept their offer and turn to mainland China? All are problems worthy of more in-depth investigation.