In a blistering attack on the entire European project, the former Dynasty star also slammed the policies of Europhile Deputy Prime Minister Nick Clegg.
Joan fired off her verbal assault in an interview when asked what she would do if she was “queen of everything”.
Without a moment’s hesitation she said: “My first act as queen is to change the government. I’d change everything about it.
“I’d get us out of the European Union as I don’t think it has done anything for the British people.
“The EU, controlled from Brussels, cares only about itself.
“We pour in billions of pounds that could go towards making more schools and houses and creating jobs in Britain. The fact we kept the pound is the best thing because the euro is rather dodgy.”
Ms Collins then attacked Lib Dem leader Mr Clegg, 46, who was Euro MP for the East Midlands from 1999 to 2004 and recently criticised David Cameron’s vow to hold a referendum on Britain’s EU membership after the next election.
She said: “Watch out, Nick Clegg. I don’t like his policies and I don’t think I really like anything about him.”
But she held back from revealing her innermost feelings about him saying: “I don’t want all those Cleggites on Twitter saying, ‘How dare she say this, that bitch’. You have to be really careful what you say these days because people can be horrible.”
Watch out, Nick Clegg. I don’t like his policies and I don’t think I really like anything about him
The interview supports the Daily Express crusade for Britain to leave the EU and follows a recent poll saying 50 per cent of the electorate would vote “out” in an in-out referendum.
It is not the first time Ms Collins has voiced her anger at Britain’s membership of the EU. In 2011 she said the UK was being strangled by the EU’s “petty bureaucracy”.
Britain’s elderly did not enjoy “a proper lifestyle after a certain age” because of the billions paid into the EU by British taxpayers, she said.
Ms Collins also used the interview with Stylist magazine to call for more open spaces for children to play in.
She said: “I’d put playgrounds in all schools, so children can have activities outside, rather than sitting hunched over their computers.”