http://blog.uscis.gov/2014/05/five-questions-about-advance-paro 以上网页节选 I have an emergency and need to leave the country, but do not have advance parole. What can I do? If you are experiencing an extremely urgent situation, you may visit your local USCIS field office to request an emergency advance parole document. When visiting a field office to request emergency advance parole, you should bring the following items: A completed and signed Form I-131, Application for Travel Document The correct I-131 filing fee or receipt of a pending Form I-131 Evidence to support the emergency request (e.g. medical documentation, death certificate) Two passport-style photos.