Statistics data of Lop Buri Provincial Health Office indicated at least monks have as high risk of chronic disease (e.g. Diabetes, Hypertension, Dyslipidemia) as urban males of Mueang Lop Buri district, Lop Buri Province, Thailand. The purpose of this survey research was to study quality of life (QOL) of Buddhist Monks who were stayed in 10 temples of Mueang Lop Buri district, Lop Buri Province, Thailand. Data was collected by using WHOQOL - BREF – THAI questionnaire. Data analysis was calculated by descriptive analysis. The results showed that QOL of Buddhist monks were mean of 3.50 (middle level from 5 levels; lowest, low, middle, high, highest). The highest score disclosed that they thought their life had meaning with them, they satisfied in themselves, they needed to treatment for working, and their life to go on, and they went to some place by themselves. The lowest score showed they felt pain their body, and they felt bad such as sad, alone, upset in sometime. Therefore, health promotion services could be performed on health-care enhancing activities developed for quality of life of Buddhist monks.