The objectives of this research were as follows: 1) to study the volunteer spirit in Theravada Buddhism; 2) to study the volunteer spirit of the Buddhist peer support group of Tao Lek villagers, Phon District, Khon Kaen Province; 3) to analyze the volunteer spirit of Buddhist friends helping friends Buddhist of villagers in Tao Lek, Phon District, Khon Kaen Province; 3) to analyze the volunteer spirit of Buddhist friends helping friends of villagers in Tao Lek, Phon District, Khon Kaen Province. This study was carried out by means of qualitative research by conducting an in-depth interview to collect data from 28 key informants. The obtained data were interpreted by descriptive analysis. The research results were as follows: Volunteerism in Theravada Buddhism: helping each other benefits oneself and others