My Life, My Death, My Choice, the umbrella campaign setup to support the Assisted Suicide Bill found that an overwhelming majority of Scots support the proposals.
MSPs are currently debating the change which would allow a terminally ill person to be given help to end their live.
The poll found that four fifths of Scots think it is either of "high importance" or "middling importance" that the proposed legislation is passed by the Scottish Parliament.
Bob Scott, spokesperson for My Life, My Death, My Choice said: "Over the past 12 months, there has been consistently high support for the Assisted Suicide (Scotland) Bill.
"This has been clearly demonstrated in the poll in 2014 showing 69% support, the 74% of submissions to the Health & Sport Committee asking the legislation to be passed and the nearly 4000 people who have signed a petition to MSPs in favour of the Bill."
But Dr Peter Saunders, a Christian from the group Care Not Killing, said polls were "easily manipulated" and that "public opinion is uninformed, uncommitted and unconvincing".
"Public support for a similar Bill dropped dramatically from 73% to just 43% when the five key arguments against it were heard," he said.
"Polls consistently show between 70% and 80% in support of assisted suicide. However, the issue is clearly far more complex than a simple 'support'/'oppose' question can do justice to.
"When offered evidence about the nature or source of opposition to assisted suicide, and some of the key arguments against it, this high level of support rapidly dwindles."