'Tomorrow's Calling' will urge young people to consider a life of vocation.
A new video will be played in front of 3,000 church members at a festival in Edinburgh's Princes Street on Sunday, after the Kirk's General Assembly starts.
The Church of Scotland is facing a shortage of ministers predicted to get worse over the next ten years as it's clergy retire.
Last year there were just 811 ministers with 1,400 congregations across Scotland.
The new video will feature interviews with recently-ordained ministers, including Revd Michael Mair, who, at the age of 26, is the Kirk's youngest minister.
He entered ministry at the age of 17 and has been at St David's Broomhouse in Edinburgh for a year.
"Being a minister is a phenomenal role to play in the community. You get to journey with people through the highs and lows of life. There's nothing else like it," he said.
Revd Tommy MacNeil, from Martins Memorial in Stornoway, will also feature.
He said: "I would have done anything to be honest, other than be a minister, but over the course of a couple of years God made it very clear that's what he wanted from me.
"I knew it would be demanding. You're on call 24/7. Although it's challenging, the more you give to people the more you see the beauty and diversity of life. You never lose from that."
The Church's incoming Moderator, Revd Dr Angus Morrison, said: "I'm very excited about 'Tomorrow's Calling.
"It's a bold step which is vital for the future of our national Church. We need leaders who will champion our work.
"Our 400,000 members are the backbone of their communities, providing millions of hours of voluntary service in social clubs for young and old, helping run food banks and innovative projects such as supporting those suffering dementia.
"Our parish ministers bring imagination, creativity and the love of Christ to those who need it."