要获得此标题，您需要扩展get_the_archive_title . 以下是如何或检查官方doc

function wpse64458_get_the_archive_title($title){
    if ( is_category() ) {
        $title = single_cat_title( \'\', false );
    } elseif ( is_tag() ) {
        $title = single_tag_title( \'\', false );
    }
    return $title;
}
add_filter( \'get_the_archive_title\', \'wpse64458_get_the_archive_title\');