The only goal of the game came in the 77th minute when Mohamed Aboutrika pushed home a Mohamed Zidan pass after a mistake by Cameroon's Rigobert Song.
The Pharaohs also went close when Hosni Abd Rabou hit the post on 61 minutes and they become the first side to win back-to-back titles twice.
Cameroon were seeking a fifth title, but rarely troubled the Pharaohs.
It was a triumph for Egypt coach Hassan Shehata who becomes only the second coach to win successive trophies.
His team had much the better of the first half, creating most of the scoring chances with their speed and mobility.
Once again Cameroon based their game on physical power, taking a defensive approach that supplied few openings to lone striker Samuel Eto'o.
Aboutrika came close on 13 minutes, with a 35-yard shot that was pushed around the post by Cameroon goalkeeper Carlos Kameni.
Two minutes later the Indomitable Lions were forced to make a substitution, with Gilles Binya replacing Alexandre Song, who was carrying an injury from the previous game.
Cameroon defender Geremi forced a save from Essam Al-Hadari from a free-kick, but the Pharaohs almost took the lead seconds later.
Hadari's clearance found Emad Moteab, whose 15-yard shot was parried brilliantly by Kameni, but into the path of Aboutrika, whose shot was too high.
Nine minutes before half-time a ball over the Cameroon defence found Moteab inside the area, Kameni made a fine save from the shot, and it remained goalless.
Cameroon came back from the break with purpose, causing the tempo of the match to increase considerably, but Egypt quickly took control of the game again.
Kameni had to make two more fine saves, from a close-range Amr Zaki shot, then from Abd-Rabou's 25-yard cracker that he punched away.



