This research aims at studying religious and moral situation in four villages in Rayong, analysing the problems, experimenting on the application of Buddha's Dhamma to the development of rural people especially the Young Buddhist Groups, and evaluating the effects and changes that result from the experiments. The result of Questionnaire No. 1 answered by 9.4-18.7% of the population of the two experiment villages shows that the villagers have decreased their drinking and become more confident in arranging religious festivals and ceremonies without drinking. All intoxicants arebanned from all temple activities. People in every village have gained adequate understanding of the aims of practicising meditation. As for spiritual knowledge, the villagers have acquired more understanding of Dhamma except at Nong Krankrau. People in 3 villages apply Dhamma to their solutions of problems more, whereas people at Wang Hin remain the same in this matter. The number of answer after the experiment from Wang Hin and Nuen Yong that the purpose of making merits is to contribute to Buddhism is the same as before the experiment, while the number increases in Wang Wa and Nong Krankrau but is still less than the number from Neun Young. The number of answers from Neun Yong and Wang Wa which say that the sila practise in daily life is the way of making merits that gives best results, most increases, whereas the number of answers of the same question from the control groups in Nong Krankrau and Wang Hin decreases. The problem concerning religion before the experiment was that there were people who lacked interest in Dhamma practicing in every village. After the experiment, this problem has decreased in the experimental group but the problem of lacjing Dhamma teachers has increased. The result of Questionnaire No. 2 concerning the effects of the research on experimental groups, answered by 17.9 and 6.8% of the population of Neun Yong and Wang Wa respectively, shows msny changes. The villagers know more about Dhamma, practise Dhamma more and intoxication during religious festivals decreases. The villagers economize when they arrange religious festivals, ninty percent of them accept the importance of activities in improving religious and moral situation in the communities according to the proposals in the research projects. They see the benefits of the organization of the Young Buddhist groups. On the other hand, 128% and 15.8%, most of whom are those who disagree to the prohibition of intoxication in religious festivals, thought that the research brought about bad effects on their communities.
