The result of the study shows the old custom or culture of Heet 12 Klong 14 which is a valuable Isan tradition. The traditions of Heet 12 and Klong 14 are directly influenced by Buddhism teachings and beliefs which not only can provide a path to enlightment but can also be used to resolve social disputes. The candle festival of Ubonratchathani province, the rocket festival of Yasothorn province and Boon Pravet of Roi-Et province are good examples of the cultural application with tourism. This also benefits for economy and culture conservation. The village-fund establishment, the cattle bank establishment and the rice bank establishment are results from Boon Koonlan (the tradition of making merit to worship rice in the first lunar month). The village surrogate in Nong Muen Tan village, the village committees in nearly every village are applied into today’s process of judgment The study definitely encourages people to apply Heet 12 Klong 14 or Isan local indigenous knowledge in desisting social dispute. For instance, Boon Khao Saak (the tradition of making merit for dead people in the middle of tenth lunar month), Boon Khao Pradubdin (the tradition of making merit in the middle of the ninth lunar month) and Boon Khao Jee (the tradition of making merit in the middle of the third lunar month) are applied with Father’s or Mother’s day, because these days are official holidays to pay respect to the elderly. Phook Siew (the ceremony of making friends) and Bai Sri Su Kwan (a ritual ceremony that is arranged for welcoming guests or as consolation to people) are traditions arranged to welcome the comers and to strengthen relationship. The study also shows results from applying the Isan local indigenous knowledge in desisting social dispute. People using such wisdom in desisting social dispute live happily in the community. In contrast, using the official laws may cause conflicts, dislike and sorrows in the community. Therefore, Isan local indigenous knowledge should be encouragingly applied into practice of desisting social dispute, or at least preserve in the community for the new generation.