Abstract: With the implementation of the new customs tax policy, the profit space of suppliers for some foreign products is relatively reduced. Therefore, some illegal merchants are using inferiors to cheat overseas online shopping consumers. Overseas online shopping consumers usually have lower perception of the quality of overseas products, which results in lowering overall demand for foreign products. Importers should use the big data to interpret consumers' potential shopping demand, establish the supply chain and corporate with the overseas logistics system, improve the quality audit of imported goods and improve after-sales service to ensure the basic rights and interests of overseas shopping consumers.