"A-levels and T-levels will be folded into a new qualification for all school leavers, the prime minister has said.
The Advanced British Standard will mean 16 to 19-year-olds will study five subjects instead of three, and some English and maths to 18.
Rishi Sunak told the Conservative party conference he would "finally deliver on the promise of parity of esteem between academic and technical education".
He said it would ensure children leave school "literate and numerate".
Mr Sunak told the event, in Manchester: "We will introduce the new rigorous, knowledge-rich Advanced British Standard, which will bring together A-levels and T-levels into a new single qualification for our school leavers."
All students would sit the Advanced British Standard, he said, studying "some form of maths and English to 18, with extra help for those who struggle most".
"In our country, no child should be left behind," Mr Sunak said."
To be clear, this would only apply to students in England as education is devolved.