Abstract: The main purpose of this research, was to find the determinants effecting to self-performance according a participatory learning in living based on the sufficiency economy philosophy using environmental education principles. This study was conducted at prototype sufficiency economy villages. The sample consisted of rural community people age 15 years and over, 90 stratified randomly subjects according to community organizational memberships were used. The instruments used were a questionnaire on self-behaving based on the environmental education learning principles, participation and self-reliance in living based on the sufficiency economy philosophy. The statistics used for analyzing the collected data were frequency, percentage, mean, standard deviation, F-test (One-way MANOVA) and stepwise multiple regression analysis. The results of the study were as follows: The rural community people had self-performance according to environmental education learning principles and self-reliance in living based on the sufficiency economy philosophy as a whole and in each of these aspects at a high level: awareness, knowledge, attitude, skill, evaluation, participation in learning, technology, economy, natural resource, mind and society. However, the participatory in living based on the sufficiency philosophy as a whole and individual all these aspects was at a medium level: Planning, doing, checking and acting. The rural communities people with different genders had different performances according to the environmental education learning principles as a whole and in each of the three aspects and self-reliance in living based on the sufficiency economy philosophy as a whole and in each of the 2 aspects; those with different age groups had different participation as a whole and in each of the 2 aspects; those with difference status of being core leaders of community group members had different performances according to environmental education learning principles as a whole in each of the 3 aspects, participation as a whole and in each of the 3 aspects and self-reliance as a whole and in each of the 5 aspects; those with different statuses of positions in the community had different participation in learning as a whole and in each of the four aspects and those with different status of being community organizational membership had different participation in learning as a whole and in each of the 3 aspects at the 0.05 level of significance. There were 2 variables which, could predict self-reliance in living based on the sufficiency economy philosophy (y) of the rural community people (F = 20.47, p≤0.005) including: Being core leader of group members in the community (x₁) and participation doing (x₂). The equation could be written as: y = 2.50+ 0.47x₁ + 0.28x₂ and the predicting accuracy was at 31.00% (R²_adj = 0.31).