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The Internet of Things (IoT) has significantly impacted international trade, benefiting national and international economies. It has increased trade and financial liberalization in many countries. Ecological and environmental protection have become critical issues due to the fast mobility of money and commodities. The purpose of this paper is to find a way to balance foreign trade growth with environmental protection. We aim to achieve this by using IoT to establish a co-integration model that takes into account the comprehensive environmental index, imports and exports, and the capital-labor ratio. We have collected data from Quanzhou City between 2011 and 2019, based on various environmental pollution indicators, import and export trade volume, capital-labor ratio, and other factors. Our analysis includes an examination of the empirical model of foreign trade and the ecological environment, as well as the impulse response. Additionally, we used prediction variance decomposition and the Granger causality test to understand the coordinated relationship between foreign trade and the ecological environment. Our results demonstrate that when the volume of exports (EX) increases by 1 percent, the ecological environment in Quanzhou City is negatively impacted by about 0.06%. On the other hand, when the volume of imports (IM) increases by 1 percent, there is a 0.26% positive effect on the ecological environment of the city. Finally, when the capital-to-labor ratio (K) increases by 1 percent, there is a 0.40% deterioration of the city's ecological environment. [ABSTRACT FROM AUTHOR]