He or you need to become a naturalized U.S. citizen in order to bring your parents over.
QUOTE
UNLIMITED FAMILY-BASED
Immediate Relatives of U.S. Citizens (IR): The spouse, widow(er) and unmarried children under 21 of a U.S. citizen, and the parent of a U.S. citizen who is 21 or older.
http://travel.state.gov/visa/immigrants/ty...types_1306.htmlThis one of the many benefits of being a U.S. Citizen.
Only other way is for your parents to also win the diversity lottery.