"The intention of this programme is to ensure people are ready for work and have skill sets to meet employer and labour market needs for sustainable employment."
The Corrections Department already has agreements with 52 employers to give jobs to up to 423 ex-prisoners each year.
In August, a research paper by Stephen Cunningham, the Department of Corrections director of offender employment and re-integration, cited a study showing a 20 per cent reduction in reoffending by non-violent offenders who had jobs compared to those who did not.
The same paper noted that the sooner an ex-prisoner got a job, the less likely they were to return to crime.
Under the trial, prisoners would get help to access education and training, financial support, health services, and social and housing support.
The trial will start this week in Northland, Hawke's Bay, Manawatu, Rimutaka, Arohata, Auckland Men's and Auckland Women's prisons.
Contractors will deliver a similar service from November for Rolleston, Christchurch Men's and Christchurch Women's prisons.