The three ways to enter the seller registration page on the Amazon homepage include:

First, directly select the "Seller Center" option in the top navigation bar of the Amazon homepage, and then click the "Start Selling" button to enter the seller registration page.

Second, you can find the "Become a Seller" link at the bottom of the Amazon homepage. Clicking the link will jump to the seller registration page.

Finally, enter "Amazon seller registration" and other related keywords through the search engine to find the link to the Amazon seller registration page and click directly to enter the registration page. Through the above three ways, sellers can quickly and conveniently enter Amazon's seller registration process.