Teachers in Darwin and Alice Springs on Thursday held four-hour work stoppages and corrections officers stopped work for 12 hours.
Nurses, firefighters and utility workers have also taken protected industrial action.
They are protesting the NT Labor government's two per cent annual wage increase offer for public sector workers.
It was made in October when the Fyles government backflipped on its unpopular 2020 four-year pay freeze wages policy.
"We feel like we are going around and around on a roller coaster, with the government hoping the workers fall off and give up," UnionsNT secretary Erina Early said.
"This will not happen."
Ms Early said workers were angry and fed up with the constant lack of support and the government's "shameful" wages position.
"Territorian public service workers deserve better," she said.
Chief Minister Natasha Fyles said on Wednesday the government was continuing to negotiate with unions.
"We understand the cost of living pressures that Territorians are under," she said.
"We're trying to provide what we think is fair wages growth whilst at the same time managing our budget."
NT teachers, firefighters and correctional officers have taken industrial action and protested on multiple occasions over the past six months.
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