Ofer military court has sentenced Palestinian boy Amjad Ayid Abu Rahma, 15, from Bil'in village near Ramallah to six months prison.
He was arrested four months ago while taking part in the weekly anti-wall protest which takes place at the village.
There are about 300 Palestinian minors detained in Israeli occupation jails.
Meanwhile, families of Palestinians held in Israeli occupation jails called for the release of their loved ones during a protest they held near the Red Cross in Nablus city.
The protest was organized by the Palestinian Prisoner Society and Prisoner family association in Nablus and was aimed at protesting conditions in Israeli jails.
They demanded that the prisoners be allowed family visits and a stop to the policy of regular raids and the use of prisoner isolation.