A kind of cultural heritage, a Mani heap is piled with many carving stones and used as a religious altar for prayer in daily life in Tibet. It has distinctive characteristics and high research value, providing extensive content and abundant information. This paper focuses on an overview of three digitization projects for Mani heaps. Based on the collected data of five field surveys, the three projects leverage digitization methods to introduce, analyze, and represent Mani heaps to support scholarly analysis and casual appreciation. The authors explore these projects to study, represent, and conserve Mani heaps, which are often ignored by researchers.