 The synthesis of one-dimensional, 1D, van der Waals, VDW, heterostructures has opened up new possibilities for fundamental research and applications. However, there are currently limited options for creating these structures due to the limited availability of materials. This review provides an overview of the current state of 1D VDW heterostructures and discusses potential materials that may be used in the future. This article was authored by Xiang Rong, Mariyama Shigeo, and Li Yan.