根据this blogpost 您只需将以下代码添加到主题中functions.php 或在插件中：

/* Add CPTs to author archives */
function custom_post_author_archive($query) {
    if ($query->is_author)
        $query->set( \'post_type\', array(\'custom_type\', \'post\') );
    remove_action( \'pre_get_posts\', \'custom_post_author_archive\' );
}
add_action(\'pre_get_posts\', \'custom_post_author_archive\');