From images found in the cave it has been established that there has been a sanctuary at Tham Khao Luang since the early Ayutthaya period. The sanctuary was then renovated by King Rama IV around the same time that Phra Nakhon Khiri was built (mid 19th Century). It has since been used by members of the Chakri Dynasty to bestow good merit. The sanctuary has been maintained by Laotian immigrants who were allowed to settle in the area. It was recorded in a Government Gazette dated 1935 as an ancient monument.