在functions.php添加： 

function my_profile( $contactmethods ) {
	$contactmethods['weibo'] = '新浪微博';   //增加
	$contactmethods['qq'] = 'QQ';
        $contactmethods['weixin'] = '微信号';
        $contactmethods['phone'] = '手机号';
	unset($contactmethods['aim']);   //删除
	unset($contactmethods['yim']);
	unset($contactmethods['jabber']);
	return $contactmethods;
}
add_filter('user_contactmethods','my_profile');

$contactmethods 是增加，unset是删除