Nicky Morgan has told of how she is considering installing a panic button in her office following the murder of Labour MP Jo Cox.
The Education Secretary told the Sunday Times her colleagues regularly received abuse and she thought security measures would become more common.
The Conservative MP for Loughborough said she had received a terrorist death threat last year and a further warning that she would be physically attacked, the newspaper reported.
Mrs Morgan, who is also minister for women and equalities, also called for the tone of the EU referendum campaign to change.
She said the abuse of MPs happened "all the time", and added: "Panic buttons are going to become a lot more common. I'm thinking of having one fitted in my office."
Mrs Morgan, who is campaigning to remain in the EU, said: "During the last few weeks of the debate the tone hasn't been right. If we can learn anything from this we can go back to some fundamental good values.
"That has to be the right thing to do."
