Labour’s Margaret Hodge said MPs were spending much of their time in recess despite the need to scrutinise the Government’s response to the economic crisis.
The current parliamentary session is winding down, with both Houses of Parliament expected to rise for a few days ahead of the Queen’s Speech on May 8.
MPs returned from their Easter recess only last week and peers were back at work yesterday for the first time since March 27.
Mrs Hodge, who chairs the Public Accounts Committee, told the Guardian: “We are living through the worst economic crisis in modern times, MPs have a lot to do and yet we are spending much of our time in recess.
“Members of the public would be forgiven for thinking that it is MPs who are lazy and that it is Parliament that is failing to provide good value for money.
“The committee I chair spends a lot of time scrutinising public spending and whether it is worthwhile and yet the very heart of government – Parliament – seems to be the most sluggish part of our system.
“We are not spending enough time in Westminster, and this creates a democratic vacuum. It feels as if we are hardly working.”
But Lib Dem minister Norman Baker told the newspaper: “I think that it is a misunderstanding that the amount of work an MP does is reflected by the number of days that Parliament sits. It isn’t.
“Some MPs work bloody hard all year round and others don’t.”
David Cameron’s official spokesman said: “Ultimately, the shape of the parliamentary calendar is a matter for the House as a whole.
“My understanding is that, for the 2013 calendar year, the House will be sitting for longer than in any of the previous four years and possibly longer than that.”