The One China Policy in Trump Administration has attracted much attention from the "call conversation door" with Tsai Ing-wen. Although the US government has repeatedly stressed the stability of its One China Policy, the frequent interaction between the US and Taiwan and the deepening trend of substantive cooperation under Trump Administration have directly affects the stability and effectiveness of the One China Policy of the United States. The interaction between U.S. and Taiwan is closely related to the structured development of the One China Policy of the United States. The balanced effect of the policy on cross-strait relations and the balanced demand within the policy led to the dual character of the One China Policy in the Trump administration period, which resulted in the policy structure showing the characteristics of "emphasizing Taiwan over land" under the background of the Rise of China.