Support for the SNP is slightly higher than at the time of the party's landslide victory in the 2011 election, according to a poll.
The Panelbase poll, which questioned 972 people, put SNP support at 45% in both the constituency and regional votes. The result is the same in the constituency vote as in last year's election and is one point higher in the regional vote.
Labour gained two points in the constituency vote, going from 31.7% in the election to 33% in the poll. It also increased support in the regional vote, up almost four points from 26.3% in 2011 to 30%.
Support for both the Conservative and Liberal Democrat parties has fallen slightly, according to the poll.
The Conservatives dropped by almost 2% in the constituency vote, from 13.9% in the election to 12%, but remained largely the same in the regional part at around 12%.
The Liberal Democrats saw support fall in both votes, going from 7.9% in the constituency part to 6%, and from 5.2% in the regional vote to 4%.
SNP Business Convener Derek Mackay MSP said: "The momentum remains well and truly with the SNP as we continue to show competence in Government, fulfilling our social contract with the people of Scotland in the face of Westminster cuts.
"The SNP's overall support in this poll is actually up on our 2011 election victory.
"The core message from our conference is that there is now a real threat to the achievements of home rule through the austerity agenda of all of the anti-independence parties, and only a vote for an independent Scotland can protect Scotland's progress.
"The challenge now is to maintain this momentum and win the argument for independence, because when we win the argument, we will win the referendum."