WordPress secondary menu means that in a WordPress theme, you can use a menu as the top menu and create a secondary menu under the top menu, thus forming a hierarchical relationship.

WordPress secondary menu can organize website content more effectively and make it easier for users to find what they want.

The secondary menu can also help the SEO optimization of the website, because it supports the classification structure and multi-links.

Setting the secondary menu of WordPress is very simple, just go into the WordPress background, add the top menu to the menu, then add the secondary menu and assign the secondary menu to the top menu.

Meanwhile, other types of pages, articles, categories, etc. Can be added to the menu to form a complete menu structure.