His resignation takes effect as former Deputy Minister Nicola Sturgeon is set to take charge.
EDINBURGH EVENING NEWS E-EDITION
Mr Salmond also paid tribute to the Scottish electorate after a huge turnout for the Scottish Independence referendum on September 18.
He said: “Scotland now has the most energised, empowered and informed electorate of any country in Europe.
“I’m happy to say, with complete certainty, that more change and better days lie ahead for this Parliament and for Scotland.”
The Linlithgow-born politician revealed his plans to step down the morning after the referendum, with speculation growing that he could return to Westminster.