The pro-independence Caledonian Union is to a hold a march in Noumea on Bastille Day, separate from the official French ceremony involving the armed forces.
The party says its march is to mark liberty and the birth of human rights.
It says the march is in part in response to the territory's recent election for the French National Assembly that gave rise to calls for a new flag to express the territory's identity.
But it says a new balance had been found with the joint use of the French and Kanak flags.
And it says to guard its dignity, the Kanak people is in no rush to retreat into the shadow of a common flag.
