She then mocked the Labour leader's outrage at her trip to America and said: "He can lead a protest. I'm leading a countrty."
The PM said her trip to visit Donald Trump was a success – as it guarenteed 100 per cent support from the new president to NATO.
She said: "I am pleased to say that i was able to build on the relationship that we have with our important ally.
"Crucial among those was a 100 per cent commitment to NATO – NATO which keeps us safe and Europe safe."
She then mocked Mr Corbyn for the protests which have swept the world over Mr Trump's refugee ban.
Theresa May and Jeremy Corbyn at PMQs
Mrs May said: "The job of government is not to take to streets in protest. The job of government is to protect the interest of British citizens."
Gesturing towards Mr Corbyn, she drew cheers and laughs by deadpanning: "He can lead a protest. I'm leading a country."
Jeremy Corbyn was shamed by Theresa May in PMQs this lunchtime
She acknowledged Mr Trump's refugee ban, which applies to seven predominately-Muslim countries, was "wrong."
Mr Corbyn first asked if she was “told by the White House if the executive order was imminent."
He asked: "Was the prime minister told about the ban during her visit and did she try and persuade Trump otherwise?”
Theresa May slapped down Jeremy Corbyn in PMQs today
In response Mrs May said: “On the policy, President Trump has implemented, the Government is clear that policy is wrong.
“We wouldn’t do it, in six years as Home Secretary never implemented such a policy. We believe its devise and wrong.”
She also defended her visit visit Turkey's leader President Erdogan, who has cracked down on human rights in the country since last summer's attempted military coup.
She said: "First of all the honourable friend should recognise thatTurkey is an important country in terms of security and migration."
Mrs May revealed she had pressured Mr Erdogan to "support human rights and the rule of law."
This is an ongoing story. More to follow…