Taiwan's economy has always highly relied on foreign trade and foreign investment and has been closely integrated with the global economic and trade system. The integration of East Asia contributed a lot, but still has yet to break the cross-strait economic and trade relations. To combat this, the Cross-Strait Service Trade Agreement(CSSTA) is the opening of a new pattern of cross-strait economic and trade exchanges that promotes cross-strait trade in services and communication and mutual investment, effectively driving Taiwan's industry to enter China’s market. The purpose of this study is to investigate suspicions of the signing of CSSTA on the political and economic aspects of Taiwan, and the effects the failure of passage of the Cross-Strait Service Trade Agreement would have. CSSTA is a great concern to various industries. There are completely different views in politics, business and academia, but there is no unified answer which points towards the controversy among the different sectors. Therefore, this study investigates the main problems that may arise and the available benefits of literature analysis and secondary data analysis. To conclude, the result indicates the cross-strait service trade agreement is critical for Taiwan flourished economy in the future. If the political struggle keeps putting off CSSTA, Taiwan would face many obstacles from signing other international trade agreements, and also losing the superiority that Taiwan had in the beginning. Therefore, Taiwan government must reevaluate the communication with Taiwanese about CSSTA in order to alleviate counterforce. To move forward with CSSTA, Taiwan can keep up with South Korea economic prosperity.