Vietnam geopark network has so far had 3 geoparks recognized as UNESCO Global Geoparks and 1 provincial-level geopark that has also submitted application for UNESCO’s recognition as a global geopark. The heritage system of Vietnam geoparks (Ha Giang, Cao Bang, Dak Nong and Quang Ngai) was initially investigated, studied, established and preliminarily classified by the Vietnam Institute of Geosciences and Mineral Resources according to GILGES (Global Indicative List of Geological Sites). Similar to other types of heritage, with respect to geoheritage, after being discovered, identified, preliminarily classified and ranked, the next important task is zoning to ensure their integrity and identify risk factors, both existing and latent, natural and human-made, affecting them, thereby proposing measures to be taken to protect, conserve and promote their values. These measures can include both non-structural and structural ones, but more importantly, they should be integrated with other types of heritage, ensuring conservation and promotion of the overall values. Moreover, at present, there are many “geosites” with outstanding scientific and aesthetic values which also require zoning for conservation. This article presents some principles of zoning for geo-heritage conservation and trial application to a cluster of heritage sites in Non Nuoc Cao Bang UNESCO Global Geopark.