以下是iFlyChina网站根据网友提供的信息总结出的H1b反签需要的材料清单。本文只用于信息参考，具体权威信息请咨询您的移民律师或者美国使馆。 如果你觉得这个清单忽略任何条目，请跟贴回复，我们会加以更新。 祝各位签证顺利，旅途愉快.
1. Completed Online Non-immigration Visa Application Form DS-160. (Note DS160 replaces old DS-156/157/158)
2. Completed Form DS-157.
3. Original H1 approval form I-797.
4. All other legal papers you received with your H1 documents, like from I129.
6. Application visa fee original receipt
7. Offer letter (or Employment Verification letter) from the company in USA.
8. Valid Passport.
9. Original Experience Certificates from all your previous employment's.
10. Two photographs 2 and 2 inches square (50 mm square) for each applicant, showing full face, without head covering, against a light background. To be used in the application Form. US consulates are very particular about the Photographs specification.
11. Latest resume.
12. All your Original Degree Certificates.
13. All of your I-20s used in US.
14. Your OPT EAD card used in US
15. Your past 6 months pay stubs and last year's W2
16. If you have a research job, especially on a sensitive area, make sure you bring a research statement which explains what you do and what your group do in the research. If you are working in a university, bring your boss' information too.
17. if you have changed your immigration status during your stay at US, bring all approval notice from USCIS