SFA chief executive Stewart Regan had previously signalled the governing body would continue to support the UEFA president in his attempt to succeed Sepp Blatter.
A statement read: "Following a scheduled meeting of the Scottish FA board, chief executive Stewart Regan has confirmed the association's support for Michel Platini ahead of the forthcoming FIFA presidential election."
Regan added: "From the perspective of the smaller countries, he has opened up the channels of communication and ensured that every country, irrespective of size, has a voice.
"That is healthy for the game and if he is prepared to do that across the world, I'm sure he will be well-received.
"We discussed the FIFA election at our recent board meeting and agreed that the Scottish FA would support Michel Platini's candidacy."
The FIFA election will take place on 26 February next year.
