The maskless first lady appeared in the festive spirit despite being caught on tape earlier this year complaining “who gives a f*** about Christmas stuff.”
Decorating the historic mansion will be her final major job as first lady before Dr Jill Biden takes over the role in January.
The giant 18.5 ft tall Fraser Fir was delivered by a wagon pulled by two Clydesdale horses, named Winston and Ben.
Ms Trump walked around the wagon to inspect the tree, which will adorn the Blue Room.
“Merry Christmas,” said Ms Trump as she smiled and waved for the cameras during the brief event.
The first lady’s office will also soon officially unveil the White House Christmas decorations.
Earlier this year Ms Trump’s former friend and advisor Stephanie Winston Wolkoff released an audio recording in which Melania complained about the job of decorating the White House for the holidays.
Ms Wolkoff has written a book about their friendship called Melania and Me.
The secretly recorded conversation reportedly took place not long after Melania visited an immigration detention facility in Texas in June 2018.
"They say I'm complicit. I'm the same like him, I support him. I don't say enough I don't do enough where I am," she complained on the tape.
"I'm working ... my a** off on the Christmas stuff, that you know, who gives a f*** about the Christmas stuff and decorations? But I need to do it, right?”
"Okay, and then I do it and I say that I'm working on Christmas and planning for the Christmas and they said, 'Oh, what about the children that they were separated?'
“Give me a f****** break. Were they were saying anything when Obama did that?
“I can not go, I was trying get the kid reunited with the mom. I didn't have a chance, needs to go through the process and through the law.”
Ms Trump’s s chief of staff Stephanie Grisham blasted Ms Wolkoff for releasing the tape and claimed she had broken her NDA in publishing the book.