There are currently four mainstream cross-border e-commerce platforms. Amazon: Amazon, which is the world's largest cross-border e-commerce platform, currently dominates Europe and the United States, with consumers mostly middle-class, high-quality customers in developed countries. Aliexpress: As an important strategic product of Alibaba's future internationalization, Aliexpress has been developing rapidly over the past few years and has become one of the most active cross-border platforms in the world, and relying on Alibaba's huge membership base, it has become one of the richest platforms in the world in terms of product categories. eBay: It is an U.S. e-commerce platform, the market condition of eBay in the decline is indisputable, but the customer base is large, probably more than 150 million consumers. Wish:Wish is a controversial cross-border e-commerce platform, 14-16 years it helped the achievement of many sellers into the ranks of millions of millionaires.