The palm leaf text of the Southern Khmer and the South Central Cham people is one of the precious and rare documents of Theravada Buddhism and Brahmanism. This is considered one of the cultural heritage documents containing the cultural and historical values of the Khmer and Cham that they are handed down, carefully preserved and worshiped as gods. In this study, we use qualitative research methods with fieldwork and interview techniques, research available sources and combine historical and logical methods. Thereby, we compared the typical value of palm leaf texts of Khmer and Cham people through historical value and cultural value. At the same time, the study also proposes some solutions in preserving palm leaf texts through some experiences in some countries in Asia and Southeast Asia. Therefore, we can see that the urgency and importance in preserving and promoting the value of palm leaf text in the face of its disappearance and loss is taking place strongly.