The pre-school, funded by the Cornish Language Partnership, will hold weekly sessions at the college's purpose-built creche in the Camborne Jarenza Centre.
The parent-led sessions will be run by volunteers for two hours every Saturday morning.
Children aged two to six will learn Cornish through play while their parents are in the classroom learning the language. They will be taught Cornish songs, numbers and basic phrases, cook regional food and learn about traditional festivals and customs.
Parents will help make Cornish language resources for the children, such as storybooks and flash cards.
Professionals with specialisms in Cornish will also be brought in to work with the children.
Rhisiart Tal-e-bot, a teacher from Wales and a member of the working group for the Cornish Language Partnership, set up the pre-school in response to an independent study into language in 2000, which highlighted the benefits of bilingualism.
He said, 'I've had the idea for a while and after the Cornish language was officially recognised in 2005, I decided it needed to happen. Cornish is used more widely now and much more accepted than it once was.
'Initially we will run the school every Saturday during term-time as a pilot to see how many parents are attracted, but our long-term aim is operate during the week too.'
If it proves successful Mr Tal-e-bot hopes to set up other Cornish nursery schools and run a class for couples thinking of having a baby so their child can be brought up with the language at home.
Cornish phrases
Dydh da - Hello
Fatla genes? - How are you?
Pyth yw dha hanow? - What's your name?
Dyw genes - Goodbye