The $800,000 DAF truck comes with satellite communications, a computer system and a mast-mounted camera.
It is the sixth of 17 to be rolled out in New Zealand.
Dunedin Deputy Chief Fire Officer Trevor Tilyard said the vehicle was fully self-sufficient and, along with similar units in Invercargill and Timaru, could be used at any incident in the southern fire district.
The Government aimed to have the command units operational in time for next year's Rugby World Cup, he said.
The new purpose-built command unit would be used at large incidents including fires and civil defence emergencies.
The big fire in the Stavely building in 2008 was the sort of event where the truck would be deployed.
As well as serving as a command base, the truck is also equipped to deal with hazardous materials and decontamination of exposed people.
It would not be for the exclusive use of the Fire Service.
Other emergency services, including police, rural fire, search and rescue and ambulance would be able to use it.
Mr Tilyard said Fire Service staff and staff from the other emergency services would be trained to use the new vehicle and it would be fully operational in about three months.
The new vehicle's systems are powered by two generators.
Its hi-tech gadgets include a mast-mounted, 70-times optical zoom camera that could be raised up to 10m, which can take photos or video on a 360-degrees axis.
The camera would be used to watch events from a distance.
Three mobile phone connections and landline connections were backed up by a satellite dish mounted on the roof of the cab, for areas where there is no cellphone coverage.
It has several radios on board.
As well as three computers and multiple touch-screens, it has copier and fax capabilities and an air-conditioning unit.
Along with whiteboards, a 42-inch plasma screen on the outside of the truck allowed for briefings to be held outside the vehicle.
It can be connected to internal communications systems as well as the internet.
Mr Tilyard said the vehicle would ideally be manned by up to four crew at a time, including a driver/radio operator and the command unit officer.
