The delegation, led by the Scottish National Party (SNP) foreign affairs spokesman Alex Salmond, will arrive Iran on December 19.
The visiting team are scheduled to meet Iranian Parliament Speaker Ali Larijani and Foreign Minister Mohammad Javad Zarif in the upcoming 4-day trip.
The Scottish Parliament is the devolved national, unicameral legislature of Scotland, historically playing an important role in political decisions of Kingdom of Scotland and even the United Kingdom.