With the rapid development of information technology, e-commerce is gradually changing people's production and lifestyle, changing the way of international trade; even the system and mechanism of international trade are changed by e-commerce, and new business models are created. E-commerce not only creates more trade opportunities for enterprises in various countries, but also shortens the trade distance and trading time of trade. It makes transactions unrestricted by geographic location and natural conditions, and the simplification of traditional trading procedures also increases transaction efficiency. It achieves truly global, intelligent and paperless transactions. This paper further expands the influence of e-commerce on international trade from inter-enterprise trade to individual-enterprise transactions, and analyzes the impact from the perspective of influencing mechanism. On the basis of theoretical analysis, combined with the development of international trade and the status of the promotion of e-commerce to trade development. From the aspects of trade mode, trade subject, trade management, a new elaboration has been made. From the perspective of influencing mechanism, the spatial aggregation of trade, commercial platform, trade flow, business model, information flow and business flow were systematically analyzed.