Opening an Amazon cross-border e-commerce store requires the following steps:

1. Register an Amazon account: First, you need to register an Amazon account. If you already have an Amazon account, you can use it directly.

2. Select the target market: Choose according to your own products and target markets. You can choose the United States, Europe, Japan and other markets.

3. Prepare qualification certificates: You need to prepare qualification certificates such as company registration certificate, tax certificate, product quality certificate, etc.

4. Create a store: Log in to the Amazon Seller Center, select "Open a new store", fill in the store information, upload product information and pictures.

5. List products: Add product information to the store, including product name, description, price, shipping and inventory information.

6. Choose a logistics method: Choose a suitable logistics method. You can use Amazon logistics services or choose a logistics company by yourself.

7. Start selling: After the store is created, you can start selling products. You need to pay attention to orders and customer feedback and deal with problems in a timely manner.

It should be noted that to open an Amazon cross-border e-commerce store, you need to understand the relevant laws and regulations and tax policies of the target market, as well as the purchasing habits and consumption needs of the target customers. At the same time, you need to continuously optimize products and services, improve customer satisfaction, and expand sales.