Peter Lubik, 42, severed his wife Barbara's carotid artery when he stabbed her in the throat at their Melbourne home in January 2009.
Before the stabbing they had argued about Lubik, who was a problem gambler, going to a casino, the Victorian Supreme Court heard on Wednesday.
Story continues below Last year, Lubik was found guilty by a jury of manslaughter but acquitted of murder.
On Wednesday, Justice Ross Robson jailed Lubik for nine and a half years and ordered he serve a minimum of six and a half years.
Justice Robson said Lubik, of Noble Park North, deliberately stabbed his wife in a very delicate area of the body.
He rejected Lubik's defence that his wife had come at him with the knife, finding that only Lubik had a knife.
"Your deliberate stabbing of Barbara involved a deliberate intention to harm her," Justice Robson said.
"It was a shocking and cowardly crime. You were duty-bound to protect her.
"You are a big man. She was small.There was not the slightest justification for taking up a knife against her in her own home."
Justice Robson said Mrs Lubik constantly forgave her husband's abusive, "bullying and boorish" behaviour.
"Despite her loyalty, love, forgiveness and companionship, you cruelly and deliberately stabbed her, with a knife, killing her," he said. I can discern no reason for your conduct, other than your repeated abuse and bullying of your wife."
Lubik's two-and-a-half-year marriage had been a turbulent one and included physical violence, the court heard.
Lubik was a "good husband" unless he had been drinking. Mrs Lubik came to Australia from Poland in 2004.
Lubik has already served more than two years and two months in custody.
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