回复：计划12/25回国然后1/25号回来，可是俺H1是在01/14/2006过期

You have to surrender all your I-94 if you have when exit the country. You will need to apply for new H1 visa to enter the country. It may take days to a month if they do background checking on you. You should prepare for delay of coming back. Unless you had H1b visa stamp within a year.