Yes, your spouse may be admitted as a derivative beneficiary ("immediate relative") when you are granted lawful permanent resident status (I-551 "green card") but you will need to prepare and present the necessary paperwork to the government (USCIS) on her behalf and have it approved before she will be admitted to the US as a derivative spouse based on your approved immigrant status.
Answered on Apr 28th, 2012 at 6:01 AM