On the Study of the Sustainable Development of Intangible Cultural Heritage of Indigenous Peoples’ Diets—Take the Protection of Geographical Indications as an Example

From the perspective of geographical indications, this article introduces the methods used by the geographical indication system to protect indigenous peoples’ diets as an intangible part of their cultural heritage. By collecting and analyzing the data of the five major intellectual property offices of the world, we can understand the protection status of the intangible cultural heritage of indigenous peoples’ diets. Difficulties and controversies in the protection of food-related intangible cultural heritage geographical indications; the solution method is based on an in-depth understanding of development strategies, and four suggestions are provided; finally, the self-check sheet for the protection of indigenous peoples’ dietary intangible cultural heritage geographical indications is supplemented. Combining the questionnaire surveys and field visits, the conclusions are: The protection of indigenous peoples’ food culture is not a deliberate attempt at preserving traditions, but instead the market demand that is most directly oriented to the times and food; while protecting indigenous peoples’ food culture through geographical indications, revitalizing the inheritance and development of community food culture; giving more rights to the indigenous peoples, and providing a good legal protection environment for the inheritance, dissemination and innovation of intangible cultural food heritage; give full play to the potential of geographical indications and their associated benefits.