Nicky Morgan is considering installing a panic button in her constituency office after the death of Labour MP Jo Cox.
The education secretary said her colleagues regularly received abuse and she thought security measures would become more common.
Mrs Morgan said the abuse of MPs happened "all the time", telling The Sunday Times: "Panic buttons are going to become a lot more common. I'm thinking of having one fitted in my office."
The Conservative MP for Loughborough, who is also minister for women and equalities, has come under fire frequently in recent months as she pushes ahead with controversial plans – now watered down – for blanket academisation.
She is currently campaigning for Britain to remain in the EU. She 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."