Logan Thomson will cycle across the Forth Road Bridge 14 times on Friday.
The young Fifer will also have the support of his six year old little sister Abbie, who will attempt to complete one of the laps of the bridge on foot whilst supporting her big brother along the way.
Logan was inspired to support Poppyscotland after the charity helped his Uncle Stuart got his life back when returning from serving in Iraq.
Stuart Proudfoot suffered critical injuries after his vehicle was struck by a roadside bomb during a routine patrol in January 2006, and the same incident claimed the life of his friend.
Logan, who has already raised £780 through online donations, said: “Poppyscotland holds a special place in the hearts of my family.
“My Uncle Stuart was injured in Iraq and Poppyscotland helped him get a house and gave him the support he needed.
“Also, my Uncle Barry is currently serving with the Royal Navy and I am hoping to follow in the military footsteps when I am older too.
“I’d love to raise £1,000 for the charity – that’s my ultimate goal.
“I’ve also got my little sister Abbie to help, who will be crossing the bridge too on foot. I’d like to ask the Scottish public to donate what they can, so that Poppyscotland can continue to help more families like ours.”
Gordon Michie, Head of Fundraising at Poppyscotland, said: “We’re honoured to have the support of Logan and his little sister Abbie.
“They’re really going the extra mile for our ex-servicemen, women and their families who are in desperate need of our help.
“Now more than ever before, the Armed Forces community needs the support of the Scottish public.
“That’s why we’re calling for the Scottish public to go that extra mile in their support for this year’s Poppy Appeal.
“Whether it’s peddling 20 miles like Logan, or taking on a walking challenge like his sister Abbie, every penny helps us to offer life-changing support to the Armed Forces community in Scotland.”