This research is aimed to study the vocal performance for Lakhon Chatri by Kanya Luk Mae Pan troupe. It also aims to study the background and the analysis of the vocal performance of Lakhon Chatri by Kanya Luk Mae Pan troupe. The study revealed that Lakhon Chatri of Kanya Luk Mae Pan troupe was transmitted by Kru Poon Ruengnon to his daughter: Kru Pan Ruengnon and another generation Kru Kanya Tipyosod who named the troupe Lakhon Chatri by Kanya Luk Mae Pan. The troupe was established in 1992 after Kru Poon and Kru Pan passed away; the Lakhon Chatri has been performing in the original style.The study of the vocal performance of Lakhon Chatri conducted the example of 4 singing melodies consisted of Tumnong Rai, Tumnong Tone, Tumnong Kumplud and Tumnong Kruan Tone, which were used for Lakhon Chatri’s play lyrics. The analysis shows that the pentacentric mode of Chawa and Pieng Or Larng were used. There is a pattern of the melodies used for the play lyrics. The 5th bar is always left. The most prevalent singing techniqes were found are Pun Kam, Hang Siang, Sabud Siang, Muan Siang and Muan Kam in order
