The purpose of this study was to investigate Mor Hom natural dye using a qualitative research approach and local knowledge. Relevant primary and secondary data were collected through in-depth interviews with three sets of key informants, including community scholars, natural-dyed Mor Hom clothing businesses, and academics, and a participatory observation procedure involving a total of 15 participants from five local wisdom areas in Phrae province, Thailand. The content analysis revealed that the natural dye Mor Hom is inherited from the progenitors through communion with the inheritors through narrating, remembering, following, trial and error, and testing until completed. In order to determine Mor Hom local knowledge from the respondent's implicit information, knowledge management technologies are required. In wisdom management, knowledge storage is demonstrated and organised using a method of learning by practise, learning from previous teachings, and studying from successful individuals in natural dyeing, or "best practice", to generate explicit knowledge. In addition, they were developing a knowledge management guideline for natural dyeing wisdom that the community could use to learn and share information. In addition, the local perception of the district is extremely conservative because Mor Hom represents Phrae when people discuss this region. For the community and all concerned parties, the outcome of this research is a handbook and an electronic book for managing the local knowledge of Mor Hom natural dyes.