Mrs. Obama, daughters Malia and Sasha and first dog Bo greeted the arrival of a 19-foot Fraser fir from Peak Farms in Jefferson, N.C.
The tree arrived Friday on a horse-drawn carriage. It will be displayed in the Blue Room of the White House.
The first lady says the tree is "perfect."
The fir tree comes from the farm of 2012 National Christmas Tree Association grand champion winners Rusty and Beau Estes.
Members of the association have presented the official White House Christmas tree every year since 1966.