你当然可以，只要按meta_field, 就像这个例子

$posts = get_posts(array(
    \'post_type\'         => \'post_type\', //The slug of your post type
    \'posts_per_page\'    => -1,
    \'meta_key\'          => \'meta_key\', // The name of your field
    \'orderby\'           => \'meta_value_num\',
    \'order\'             => \'DESC\' // Will put the higher values first
));