The soldiers died yesterday when hundreds of heavily armed Taliban insurgents attacked a remote Army outpost in eastern Afghanistan's Kunar Province.
At a ceremony in Kabul today, an honour guard stood at attention behind the long line of coffins draped in the Afghan flag and topped with bouquets of flowers.
Gen Bismullah Khan Mohammadi, Afghanistan's defence minister, pledged that Afghan security forces will stand up to threats.
Casualties among Afghan troops have been rising significantly since they took the lead from foreign troops in the war against the Taliban.