The quality of life improvement of people and communities with sustainable development, is important. This research aims to study happiness, stress and life quality levels, to study factors related to the quality of life of the people in the Lam Ta Khong Wind Turbine Project area, Khao Yai Thiang Community, Sikhio District, Nakhon Ratchasima Province, Thailand. This study is survey research. The samples were 353 people determined by using CDC's Epi Info program in Survey Confidence Level = 95%. Data were analyzed by using a packaged computer program SPSS (Version 25). The statistics used in the research were frequency, percentage, and Spearman's correlation coefficients. The instruments used were the World Health Organization Quality of Life (WHOQOL), Thai happiness indicators, and stress assessment of the Department of Mental Health. Data were analyzed by descriptive statistics and Spearman correlation coefficient statistics. The results of the study found that most of the people in the area Project were less happy than the general population of 51.8%, moderate stress level of 71.1%, and overall life quality at a moderate level of 68.3%. The factors related to the quality of life of the people in the project area were age, educational status, religion, occupation, life income, congenital disease, happiness, stress from seeing and hearing noise from the wind turbine, physical and mental life quality, social and environmental relations statistically significant (P < 0.01,0.05). In conclusion, the overall quality of life of the people in the area was low to moderate, but it is better from the development of occupation and income in the community. There must be plans, monitoring measures and surveillance of environmental quality and health, including social development, creating jobs and incomes for continuously and in parallel with the development of the project. This will result in overall sustainable better quality of life for the people.