The drumhead ceremony, a multi-faith service on the castle esplanade to take place on August 10, will replicate those held on the front line in 1914 when drums were piled up and used as an altar. Members of the congregation will parade down the Royal Mile, led by military bands, to Holyrood Park where a replica Commonwealth war graves cemetery will be installed.
Norman Drummond, chair of the Scottish Commemorations Panel, said: "It is important that Scotland remembers the sacrifice of those who served during the First World War.
"The August 10 event will bring communities together to reflect the mood of the country as we went to war. The drumhead service will replicate ceremonies held in the battlefield, while the procession will reflect the mix of enthusiasm and apprehension felt by those who enlisted or waved their loved ones off to battle."