Primary Industries Minister Bryan Green said the ban would be phased in by 2017, while restrictions on the time pregnant sows are allowed to be kept in stalls will be in place by 2014.

"This will give producers time to adjust to the changes because managing sows will require more space, new equipment and different animal husbandry practices," he said.

"I would not impose this on pig producers if I did not think it was necessary both from an animal welfare perspective and for the future of our pork industry in Tasmania."

Animal welfare groups say the use of sow stalls in pig farms is one of the most cruel farming practices used in Australia.

Of the 3000 sows in Tasmania, about two- thirds are confined in metal and concrete crates and treated as "breeding machines", the Brightside Farm Sanctuary says.

Greens primary industry spokesman Kim Booth said the ban was a big first step towards a more humane approach to animal welfare in the state.

"Sow stalls are disgusting, inhumane and cruel, and it is fantastic to see the new Minister for Primary Industry agreeing so readily to phase out their use," he said.

Opposition primary industries spokesman Jeremy Rockliff said farmers had not been consulted.

Mr Rockliff called on Mr Green to immediately detail a compensation package for producers to manage the change.