This topic of this paper is to explore economic and trade policy toward Mainland China of the DPP’s New Tide Faction. Being the most important faction in the DPP; its policy includes the Taiwan sovereignty implications and different discourses, and the past line was towards to conservative, self-protection and effective management. When the transition of sovereignty discourse and exchanges of huge amount of money and economic and trade business across the Taiwan’s Strait, and both the government joined the WTO, faction’s policy was toward to make a transition. It emphasized the realistic and flexible policy; and the good intention on political attitude.