The pair were convicted after she took driving licence points for him after he was caught speeding in 2003.
Pryce was described as being "controlling, manipulative and devious" by the Southwark Crown Court judge.
Huhne's initial sentence was nine months, but his guilty plea meant a reduced term, reports the BBC.
Sentencing the pair, trial judge Mr Justice Sweeney said Huhne had lied "again and again".
He told the former couple: "To the extent that anything good has come out of this whole process, it is that now, finally, you have both been brought to justice for your joint offence.
"Any element of tragedy is entirely your own fault."
Chris Huhne Chris Huhne was exposed to the full glare of the media spotlight during his ex-wife's trial
During Pryce's trial, the prosecution alleged that she had chosen to take the points but later plotted to expose Huhne after he revealed he was having an affair with an aide and ended the couple's 26-year marriage.
The judge said Pryce's "weapon of choice" - telling newspapers she took the points - was a dangerous weapon because they had both broken the law.
And the momentum of the news story led to Pryce's "unmasking".
The judge added that Pryce hoped the police would not obtain evidence of her involvement, but they did.
Mr Justice Sweeney said point-swapping was "all too easy to do" but it amounts to the serious criminal offence of perverting the course of justice.
The judge told Huhne he was somewhat more culpable for the offence.
He said: "You have fallen from a great height, albeit that that is only modest mitigation given that it is a height that you would never have achieved if you had not hidden your commission of such a serious offence in the first place."
The judge told the former MP he had committed a "flagrant offence" of its type and said there were no exceptional circumstances.
And, turning to Pryce who was sitting just a few metres apart from her ex-husband in the dock, he told the economist she had been readily persuaded into taking the points.
Vicky Pryce in the back of a prison van Vicky Pryce was taken from court in a prison van
The judge said that, unless released earlier under supervision, the pair would each serve half of their eight-month sentences
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