Apply for K1 visa.

需要些什么材料上的准备？大概多长时间？多谢！

-File I-129F following the I-129F Instructions. See:

http://www.uscis.gov/portal/site/uscis/menuitem.eb1d4c2a3e5b9ac89243c6a7543f6d1a/?vgnextoid=640a3e4d77d73210VgnVCM100000082ca60aRCRD&vgnextchannel=640a3e4d77d73210VgnVCM100000082ca60aRCRD

 

http://travel.state.gov/visa/immigrants/types/types_2994.html