1. Through a series of judgments and analyses, it can be judged whether there is infringement in Amazon product selection.

2. First, by comparing the appearance, function, material and other aspects of the product, it can be judged whether there is a high similarity with existing brands or products. If there is a high similarity, there may be infringement.

3. Secondly, by querying and comparing the intellectual property rights such as trademarks and patents of the products, it can be judged whether there is infringement. If it is found that the products in the selection have trademarks or patents of existing brands or products, there may be infringement.

4. In addition, market research and competitive product analysis can be conducted on the products in the selection to find out whether there are similar products of other brands or products. If the products in the selection are highly similar to the products already on the market, there may be infringement.

5. In order to avoid infringement problems, Amazon can strengthen its awareness of intellectual property protection in the process of product selection, strengthen the review and screening of products, and avoid the listing of infringing products. At the same time, Amazon can also establish a more complete infringement complaint mechanism, handle infringement complaints in a timely manner, and protect the legitimate rights and interests of intellectual property.