Zhang, Y.-W., 2019. Case Analysis of the Boost Effect of Port Trade on Regional Transoceanic Economy Based on Industrial Cluster Effect. In: Gong, D.; Zhu, H., and Liu, R. (eds.), Selected Topics in Coastal Research: Engineering, Industry, Economy, and Sustainable Development. Journal of Coastal Research, Special Issue No. 94, pp. 768–772. Coconut Creek (Florida), ISSN 0749-0208. The study of the synergy development between industrial clusters and regional economies focuses more on the offshore areas. This paper introduces the mutual relation between port logistics trade and regional economic development, and aims to analyze how the two correlate each other under the industrial cluster effect. This is an exhaustive study of the concept, the development cycle of port logistics industry cluster and what factors play an effect on it. On this basis, the interactive development of it is systematically analyzed from quantitative and qualitative perspectives, that is, the idea of system dynamics is qualitatively traced to reflect the development relationship of the two by a causality map; then quantitatively, the Qingdao port trade and regional economy are instantiated and the location quotient is chosen as the evaluation indicator to conduct the analysis on three fronts: data analysis, Granger causality and prediction variance. Case analysis reveals that the cluster development of port trade plays an obviously positive effect on regional economy. In theory, it is significant that the industrial cluster effect plays an affirmative effect on the port economy development. [ABSTRACT FROM AUTHOR]