Federal Labor's agriculture spokesman Joel Fitzgibbon says his party will end live sheep exports if it wins government.
The announcement adds to pressure on live exports after shocking footage emerged of sheep dying on a voyage to the Middle East in 2016.
"We don't see a future for live sheep exports," Mr Fitzgibbon told Sky News on Thursday.
Labor had previously called for a suspension of northern summer exports pending the outcome of a review led by veterinarian Michael McCarthy, which is due to deliver its findings in two weeks.
But on Thursday the opposition hardened its position, calling for the trade to be phased out over several years in response to animal welfare concerns.
Labor want sheep meat to be processed domestically instead.
More than 1300 sheep allegedly died in two days during an intense heatwave in the Persian Gulf. Source: Animals Australia
"If we want sheep meat producers to have sustainable profitability we need to start working on that transition now," he said.
"If we can focus more on premium markets, chilled lamb for example, to those burgeoning middle class markets in Asia, we can lift the profitability of our farmers," Mr Fitzgibbon said. "This can be a win-win."
Agriculture Minister David Littleproud slammed Labor for not waiting for the findings of the McCarthy review.
"With the science just two weeks away, Labor rushes to a knee-jerk ban, punishing farmers who have done no wrong," Mr Littleproud said in a statement.
"Labor does not have the temperament to lead this country as it refuses to wait for the evidence."
Animal welfare groups pledge $1 million
Animals Australia and the RSPCA have offered to give $500,000 each to sheep farmers in return for the government agreeing to end live exports.
Animal welfare groups have offered $1 million for sheep farmers if the Turnbull government agrees to phase out live exports.
The industry is under pressure after shocking footage emerged of sheep dying in heat and filth on a ship bound for the Middle East, prompting calls for the trade to be ended.
"Farmers have already been changing their business model. A well-structured adjustment package can provide a painless solution for farmers while giving the trade the dignified death it failed to give to countless animals," Animals Australia's Lyn White said in a statement on Thursday.
