The announcement comes a week after the Liberal state council meeting at Devonport last weekend.

Newly-elected Tasmanian president Rod Scurrah praised Mr McQuestin's contribution over the past eight years saying "he has been one of the most successful state directors we have ever had and there is absolutely no doubt that our loss is Victoria's gain".

"As state director since 2011, Mr McQuestin oversaw the successful 2013 Federal election in which the Liberals won Bass, Braddon and Lyons; the 2014 State election in which we secured a record 15 seats and formed the first majority Liberal State Government in Tasmania in more than 20 years; re-election of the Hodgman majority Government in 2018; and most recently, the brilliant 2019 Federal campaign in Tasmania which saw us snatch back Bass and Braddon from Labor and in the process help to secure victory for the Morrison Government nationally," Mr Scurrah said.

"Sam will be missed, but goes to Victoria with our full support and backing, and we all look forward to him working his magic over there."

Mr McQuestin said he felt it was time to "move on to new challenges serving our party".

"The administrative side of the Party is going through a renewal phase with a new state president, and with no elections due in Tasmania for the next couple of years, now is as good a time as any to step aside and allow someone else to take up the reins," Mr McQuestin said.

"I'd like to thank and acknowledge all those who have helped and supported me over my time as state director, including Geoff Page, Rod Scurrah and the state executive, Premier Will Hodgman and his team, our senators and federal members, and most importantly our candidates, supporters, and party members for helping to make the Tasmanian Liberal Party one of the most successful divisions of the Party in the country."

Senator Jonathon Duniam congratulated Mr McQuestin on his new appointment.

"Sam has served in the role as Tasmanian state director for the past eight years and is the longest serving director in the country, and his hard work and dedication has led the Tasmanian Liberals through one of its most successful periods in history," he said.

Mr Scurrah said that the state executive would meet on Friday and would immediately begin a recruitment process for the position.