A New Zealand soldier has admitted supplying drugs to his colleagues.

Private Luke Brame has pleaded guilty at a court martial in Linton this morning to supplying the illegal synthetic drug 'N Bomb' to fellow soldiers.

The 22-year-old is charged with three offences relating to committing civil offence contrary to the Armed Forces Discipline Act and Psychoactive Substances Act 2013.

The charges relate to an incident in October last year when Private Brame purchased several caps of the drug from a friend from Fielding.

After taking the drugs, eight soldiers were arrested before being taken to hospital.

All men were treated and discharged, but five have since been dismissed from service.