Oxfam opened its first Scottish office in Glasgow in 1963 and since then has raised tens of millions of pounds for people living in poverty around the world.
Staff erected the camp in Buchanan Street, with equipment normally used in emergencies around the world, including at Jordan's Zaatari refugee camp where 120,000 Syrians have fled their country's civil war.
Oxfam is campaigning for peace talks as well as fundraising to support its humanitarian response.
More than 100,000 people have been killed since the conflict began more than two years ago.
Some two million people, half of them children, have fled the war and taken refuge in neighbouring countries.
Judith Robertson, head of Oxfam Scotland, said: "From the beginning of its work in Scotland, Oxfam Scotland has provided crucial and life-changing aid.
"Aid work has changed hugely over the last 50 years but the support and generosity of the Scottish public has remained constant.
"From giving up their spare time to work in our shops, to donating to our emergency appeals and supporting our campaigns, their support is crucial.
"That loyalty has enabled us to not only lift people out of poverty but also to give them a voice."
In Scotland, Oxfam's UK Poverty Programme works with partner organisations and community groups to help those living in poverty and campaign for a fairer society.
Many people will be most familiar with Oxfam through its shops.
There are 51 Oxfam shops in Scotland; the oldest of them, on Church Street in Troon, opened in 1972.
Around 1000 volunteers work in the Scottish shops.
Last year the 51 shops took more than £5m, with the bookshop on Byres Road in Glasgow bringing in the most money.