Xiamen International Trade Single Window is a one-stop public service platform involving multiple government departments in Xiamen to provide information services such as cross-border trade, shipping logistics, government affairs and finance. It is an important tool to create a world-class business environment in Xiamen. The platform has launched more than 70 application systems and functional modules since its debut in April 2015, forming eight functional sections. This year, the platform will be upgraded to involve the big data collection and application function instead of as a port single window. Emphasis will be placed on expanding such functions as port logistics, trade and finance, and broadening the scope of application, such as domestic trade and transportation, trade promotion and credit construction. Moreover, a "single window + N" service system will be built to help optimize and improve the business environment at Xiamen Port.