The native language of Khaplu Valley (Ghanche district ) is Balti.Balti Language is also speaking and understanding in the area of Gilgit Baltistan (Pakistan),Ledakh  (India), Kashmir  and Tibet (China).Balti is oldest language in Gilgit  Baltistan.
The population of Baltistan is a heterogeneous mixture of ethnic groups. Tibetans form the principal ethnic group in the area accounting for 60 per cent of the population.
The language spoken by the entire population of Baltistan is called -BALTI- which is an archaic dialect of Tibetan language. At present Balti has been heavily influenced by Burushaski, Turkish and Urdu and affected by Muslim literature in Persian. With the result.it has deviated from the original Tibetan language.