Federal Labor has promised it would cut the number of contractors in the Australian Public Service if it forms government after the May 21 election, which has prompted the ACT opposition to warn of "massive job cuts" in the territory.

But ACT Industrial Relations Minister Mick Gentleman said the motion was an "embarrassing stunt" from an opposition trying to insert itself into the federal election campaign.

"It again shows they won't stand up for secure jobs in our city," Mr Gentleman said in a statement.

Mr Gentleman said Labor and the Greens would amend the motion in the Assembly to highlight the harm the ACT Liberal senator, Zed Seselja, had done to the ACT's economy.

"Under Zed Seselja's tenure, Canberra has lost over 5000 jobs from the federal public service - jobs that supported local small and medium businesses," he said.

"It's clear that Zed's Canberra Liberals want to implement radical industrial relations policies that will harm Canberrans and deliver more insecure jobs."

Deputy Opposition Leader Jeremy Hanson said federal Labor's commitment was a move to cut thousands of high-skilled jobs from Canberra.

"All members within the ACT Legislative Assembly should be extremely concerned about this policy announced by the Australian Labor Party and must call on the federal opposition to drop this dangerous plan," Mr Hanson said in a statement.

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Mr Hanson said Chief Minister Andrew Barr and the Greens needed to put Canberrans above politics and join the Canberra Liberals' call to keep the jobs in Canberra.

"The Canberra Liberals will always stand up Canberra jobs and denounce any policy that threatens to take those jobs away," she said.

Federal Labor committed to restoring more than a thousand outsourced service delivery jobs if it formed government after the May 21 election.

The party last week claimed a purge of contractors and consultants used to perform the work that would otherwise be done by public servants could reap as much as $3 billion in budget savings over four years.

Labor committed to restoring 1080 service delivery jobs at Services Australia, the Department of Veterans' Affairs and the National Disability Insurance Agency.

The Canberra Liberals' motion will call on the Legislative Assembly to condemn ACT senator Katy Gallagher for proposing a "$3 billion hit to Canberra jobs and [the] Canberra economy".

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