Two aircraft of different eras will welcome the Paralympic Flame when it arrives at Fulwood Barracks.
A Spitfire from the Battle of Britain Memorial Flight will overfly the barracks, followed just minutes later by a Eurofighter Typhoon.
The Preston Military Show is the largest display by the Armed Forces in the North West, and involves soldiers and cadets from Cheshire, Merseyside, Greater Manchester, Lancashire and Cumbria.
As part of the Paralympic Torch relay the flame will be escorted into Fulwood Barracks by injured and sick soldiers from 42 (NW) Brigade's Personnel Recovery Unity and disability sports personalities.
It will be held on display at the barracks throughout the day.
Brigadier Nick Fitzgerald, Commander of 42 (NW) Brigade, said: "We're particularly looking forward to welcoming members of the public to this year's Preston Military Show.
“Not only does it take place in Guild year but we are also hosting the Paralympic Flame.
"Young servicemen and women from our region are currently on duty in a variety of roles; from Afghanistan to the London 2012 Olympics.
“Wherever they are, they look back home for encouragement and we're continually grateful for the support they receive.
"The Preston Military Show is one small way we can saying thank you to the North West for its commitment to our servicemen and women.
“We are very excited at the prospect of welcoming visitors on August 25 to what I hope will be an educational and fun free day out."