Pond Park Primary School got the call just after 09:00 BST saying a device had been left there.
Police initially asked for the children to be kept in the school while they carried out a search of the grounds.
They then evacuated the school and have begun to search inside the building.
So far nothing has been found.
The 611 children have been moved to the nearby Laurelhill Community College.
Around 600 children have been moved out of a Lisburn primary school after a bomb warning call this morning.