Wong Khub Mai is the ensemble for Royal ceremony of Thailand since ancient time. It is the root ensemble of Mahori in Ayudhaya period. The Royal elephant lull is an important Thai Royal ceremony which derived from Brahminism about white elephant's belief. Wong Khub Mai plays an important role in this ceremony, clearly settles down since the early Radanakosin period (King Rama II) until present time. Wong Khub Mai cf the Fine Arts Department is the only ensemble in existence today. It is composed of the experts in performing which is derived directly from Wong Khub Mai in Rama VII reign. They keep all the performance strickly to the original form, and still in function. These are reasons that have drawn my intention to choose Wong Khub Mai of the Fine Arts Department as case study. The purpose of this research was to study about important context concerned with Wong Khub Mai : history and role in Royal elephant lull including methodology, inheritance and character of song used in Wong Khub Mai of the Fine Arts Department. The result is found signilicantly as follow : 1. Wong Khub Mai has originated idea from Brahminism. 2. The character of Wong Khub Mai methodology showed the harmony of player as occured in the melodic unity. 3. Wong Khub Mai is the ensemble which shows the suited selection of songs and tonality in Royal hill. 4. Wong Khub Mai is the ensemble which is suited mostly to men, particularly the vocalist because of the nature of men's pitch. 5. White elephant is very rare, 80 Royal elephant lull is not frequently performed and the role of Wong Khub Mai has also become lesser.
