Abstract. Green Living has been practiced in everyday life which is accepted worldwide. However, there is no concrete academic principles for Green Living. The understanding of Green Living is rather abstract. This study focuses on the academic principles and indicators of the Green Living Families in Thailand. The results from the studies will be used for further research.This qualitative study aims at proposing the principles and indicators of the Green Living Families in the Thai context. The research methodologies include the analysis and synthesis of various documents both from Thailand and foreign countries, interviews and observation of five Green Living Families. The results show that the principles consist of 1) production for one's own consumption within the family 2) economical use of resources and 3) sharing with others and the society. The essential indicators comprise of 1) Knowledge, 2) Practice, and 3) Attitude on Green Living.