Labour plans to "eradicate" homophobic bullying in schools across the UK with a range of reforms.
Tristram Hunt is set to announce the plan, which has the backing of Stonewall, at Little Ilford School in London.
It follows a taskforce set up by the shadow education secretary to consult and make recommendations on new measures to tackle homophobic bullying in schools and beyond.
Hunt will argue that schools have a duty to show a "zero tolerance" approach to homophobic bullying.
"The presence of homophobic bullying in our classrooms, playgrounds and dinner halls is deeply troubling, and it is very real," he will say.
"The use of homophobic language and other forms of homophobic bullying is damaging the life chances of so many young people.
He will add: "It has a daily effect that limits learning, and causes people long term damage.
"There is no place for it in our society – and never should it be ignored in our schools.
"Schools have a duty to show a zero tolerance approach to the use of homophobic language and bullying."
The shadow education secretary will promise that a Labour government would ensure that all new teachers are trained to tackle homophobic bullying.
In addition, Hunt will pledge to provide support for those teachers already in the system to receive training to tackle homophobic bullying as well as promote mental health services for young people living with the consequences of homophobic bullying.
Stonewall, a charity that works on a cross-party basis, welcomed the announcement.
"Homophobic bullying and language are endemic in Britain's schools, with a devastating impact on young people's health, wellbeing and attainment," said Hannah Kibirige, senior education officer at Stonewall.
"Through our work with more than 12,000 schools across the country, we know that teacher training is vital to tackling the problem.
"We have seen progress under this and the previous Government, but more still needs to be done.
"We welcome this commitment and will be calling on future governments to ensure that every teacher is equipped to tackle homophobic bullying and that every young person can reach their full potential."