The Cypriot education minister said mobile phone use in schools is too much of a distraction for students and leads to anti-social behaviour.
Authorities plan to introduce the ban once it is discussed with parliament, Minister Athena Michaelidou said.
Cyprus will follow several European states in enacting a ban following recommendations from the U.N. agency UNESCO, she said.
"It's clear that the use of a mobile phone distracts students from their lessons, but primarily, its linked to an increase in anti-social behaviour," Michaelidou said.
Students will not be banned from bringing their phones to school but they will not be able to switch them on, she said.
Official data shows that just over 1.4 million mobile phones are operating in Cyprus - more than its population of just under 1 million people in government-controlled areas.

US and Iran closing in on memorandum to end war, sources say
Trump defends higher ballroom costs, targets less than $400 million
Trump says operation to reopen Strait of Hormuz will be 'paused'
Ukraine says Russia violated ceasefire initiated by Kyiv
Hantavirus-hit cruise ship to head to Spain after being granted permission