In this dissertation, three objectives were purposely made: 1) to study the improvement of quality of life through program of Somdet Phra Ñāṇavajirottama’s (Luang Phor Viriyang) kru-samãdhi course, 2) to study the principles of Buddhism applied to improving the quality of life through Somdet Phra Ñāṇavajirottama’s (Luang Phor Viriyang) kru-samãdhi course, and 3) to present the Buddhist integrated improvement of quality of life through Somdet Phra Ñāṇavajirottama’s (Luang Phor Viriyang) kru-samãdhi course. This is qualitative research done by using field research methodology where in-depth interview of key informants was also made and then the contents analysis was done through the descriptive analysis respectively.

     It is prescribed that Luang Phor Viriyang’s kru-samãdhi course consists of the following structures: theoretical section, walking and sitting meditation to be added up to 200 hours where writing and practicing, walking, sitting examination including Austere practicing for four days and three nights are actively needed. In the course, the Buddhist principles that are applied to the practicing are of mindfulness and clear comprehension. The conclusion of the research was integrated by four aspects: 1) the meditation method is integrated by reciting a word ‘Buddho’ in every step constantly, 2) the formative contents for teaching require mindfulness, clear comprehension and concentration consistently, 3) the provided course is practically assigned to inculcate practitioners with mindfulness and clear comprehension where their mind could be mindfully trained in all gestures living life like an awakening Buddhist all the time with right concentration, and 4) the ability to have mindfulness while living daily life is mainly evaluated. The body of knowledge gained from the research is a good life resulted from the meditation by which it creates a peaceful society bringing about the development of mind to the higher level from the worldly people who are full of defilement to the noble one who is absolute free from any bondage respectively.