它不应该；\'别那么难。你所要做的就是wp_get_nav_menu_items 滤器

这将向标题等于“”的项目的子菜单添加10篇文章。

function insert_my_posts_to_menu( $items, $menu, $args ) {
    $menu_order = count($items);

    $child_items = array();
    foreach ( $items as &$item ) {
        if ( $item->title != \'<SOME MENU ITEM TITLE>\' ) continue;

        foreach ( get_posts( array(\'post_type\'=>\'post\', \'numberposts\'=>10 ) as $post ) {
            $post->menu_item_parent = $item->ID;  // add post to submenu of current item
            $post->post_type = \'nav_menu_item\';
            $post->object = \'custom\';
            $post->type = \'custom\';
            $post->menu_order = ++$menu_order;
            $post->title = $post->post_title;
            $post->url = get_permalink( $post->ID );
            $child_items[] = $post;
        }
    } 
    return array_merge( $items, $child_items );
}
add_filter( \'wp_get_nav_menu_items\', \'insert_my_posts_to_menu\', 10, 3 );

我认为如果没有（很多）编码，这是无法做到的，请检查此URL。http://codeseekah.com/2012/03/05/list-all-posts-in-wordpress-navigation-menu/