Bar receipts showed an average of £3,500 was spent on alcohol every month since the scandal broke compared to just £1,800 a month in previous months.
A Parliament spokesman said: “The House of Commons always promotes responsible alcohol use.
“A wide range of non-alcoholic drinks and lower strength beers are available to all customers, and all bar staff receive appropriate training.”
The jump comes despite MPs claiming they would slash their alcohol consumption in the New Year.
The increase has been attributed to MPs switching to the members-only Smoking Lounge as they fear getting caught misbehaving in public bars.
Revelations of sexual harassment of MPs and researchers became public as the Harvey Weinstein scandal swept through Hollywood uncovering claims of abuse of power by stars.
The most popular drink chosen was wine with MPs which made up almost half of all the alcohol sold.
Sauvignon Blanc was the favourite among Westminster staff.
Beer was also popular with 650 pints drunk while £3,000 was splurged on spirits.
Famous Grouse Scotch Whiskey and Sipsmith gin were the top buys.
Prime Minister Theresa May and other party leaders backed the introduction of a new “grievance procedure” for staff in Parliament following the scandal.
Mrs May said party leaders agreed at a meeting in Parliament to introduce a new grievance procedure and upgrade an existing complaints hotline to a face-to-face human resources service.
She said the hotline will be introduced by the end of the month and the new grievance procedure should be in place in next year.
The agreement was branded an “important step forward” by Mrs May following the cross-party talks in Parliament as the flood of allegations threatens to destabilise both the Conservative administration as well as the opposition parties.
Mrs May said: “Sadly, over recent days, we have seen a number of allegations about figures from across the political parties and it’s important that those are investigated impartially and some have rightly been referred to the police.
“I think if this hasn’t happened to you it’s difficult to appreciate the impact that being a victim of this sort of behaviour can have, it simply has a lasting impact on people.
“And we need to do more to stop these abuses of power and I’m pleased that having convened this meeting of party leaders today we have agreed on a way forward.
“We are going to ensure that there’s an upgrade to the existing phone line for staff so that staff in future will be able to get face-to-face HR support and for that to be in place by the end of the month.
“And we’ve also agreed that we need a completely new grievance procedure for staff working here, for everybody working here, and that that should come into effect in the new year.
“So I think an important step forward has been taken today, it’s important that we get this right, and I’m sorry that we have seen these abuses of power – too many taking place over too many years.
“And the fact that they have taken place here at our seat of democracy should be a matter of shame for us all.”