The present invention provides a cross-border e-commerce sales management system. The system comprises at least one cross-border e-commerce platform, a logistics-freight platform and an intelligent security detection platform; each cross-border e-commerce platform is in communication connection with the logistics-freight platform and the intelligent security detection platform; the logistics-freight platform is in communication connection with the intelligent safety detection platform; the cross-border e-commerce platform includes a video module, a speech module, a translation module, an after-sales management module, a payment module and a central manager; the logistics-freight platform includes a goods management module, a goods labeling module and a goods transport module; the intelligent security detection platform includes an X-ray image acquisition module, an X-ray image identification module, a contraband labeling module and an electronic label identification module. With the cross-border e-commerce sales management system of the invention adopted, complete product video information and speech interpretation information of products by merchants can be provided for foreign consumers; and whether contrabands are included in goods can be automatically detected, and therefore, freight safety can be ensured, and market competitiveness can be improved.