The case is the first prosecution of journalists on terrorism-related charges in Egypt.
Authorities have accused the journalists of providing a platform for the Muslim Brotherhood, which Egypt has declared a terrorist organization.
The five-month-long trial has sparked an outcry among journalists and human rights groups, who say the reporters were only doing their job.
Egyptian-Canadian Mohammed Fahmy, Australian Peter Greste and Egyptian Baher Mohammed have been behind bars since December 29.
Prosecutors have shown footage of pro-Brotherhood protests and videos of life in Egypt as evidence.