In sentencing him, Judge John McDonald said Brown was caught speeding while grossly intoxicated and it was fortunate a police car pulled him over.
Brown wanted to be sentenced to home detention and presented a plan under which his whanau and Probation would keep a close eye on him.
However, Judge McDonald said he must impose a sentence that was consistent with other sentences in order to deter drink-drivers.
"The grief and anguish of innocent people who are killed or injured on our road by drunk drivers is well known. You have continually chosen to drink and drive. What is now proposed is too little, too late, in my view," Judge McDonald said.
Brown appealed against his sentence to the High Court which ruled a prison term was the only sentence Judge McDonald could arrive at.
Justice John Fogarty said were it a first, second or even a third drink-driving conviction, he would have had enough discretion under the law to substitute the prison sentence with home detention.
"I hope that upon Benjamin Brown's release, he takes up the offer from his whanau to be wrapped in his whanau's care and to accept the guidance of his whanau, help from the whanau to beat what is clearly a serious drinking problem and that can only be to Mr Benjamin Brown and to the community's betterment should that happen," Justice Fogarty said.