The game, hosted by New Orleans every year since 1935, will be played in the Georgia Dome on January 2, 2006.
"These are extraordinary times for all of us and the decision by the committee was very emotional," said Sugar Bowl President Mark Romig.
"However, we are most grateful to the officials and citizens of Georgia and Atlanta for agreeing to temporarily host the historic Sugar Bowl and are heartened by the enormous show of support we are receiving."
Proceeds from the annual college football game will be used to support relief efforts in hurricane-ravaged New Orleans, Romig said.
Sugar Bowl officials initially tried to relocate the game to Baton Rouge, La., on the campus of Louisiana State University.
But hotel availability in the region was severely limited due, in part, by the demand for rooms by the ongoing recovery efforts.