A petition by Welsh charity the Bevan Foundation kick-started the memorial campaign last month and the assembly's petition committee is now asking for the public's views.
The Bevan Foundation's petition says: "Despite the way that workers' deaths have shaped Wales's past and continue even today, there is precious little to show that we remember them."
And former trade union leader Tyrone O'Sullivan, who led a workers' buyout of Tower colliery in South Wales, told the Star he wanted a memorial that would celebrate the successes of working people.
"If we can remember our kings and queens with portraits and statues up in London, politicians and even rugby players, then surely there is a place to recognise the efforts of working people," he said.
"I want something that shows the achievements of working people, like the industrial revolution and things we created like the NHS ."
The public have until December 12 to submit their opinions.