After the breakthrough of the study on the two-dimensional (2D) layered phosphorus, group-V elemental ultrathin 2D layers have captured considerable attentions in recent years on account of their unique and promising electrical transport properties, including semiconductor features with direct and desirable energy band structures, outstanding carrier mobilities, controllable and tunable characteristics under applied strain, electric and magnetic fields, highly anisotropic phenomena along both in-plane and out-plane directions, topological transmission states, and negative Poisson’s ratio. Accordingly, a number of investigations on this family of 2D materials have been conducting rapidly, while initiating great potential and new opportunities on the nanoscale science and applications in optoelectronic, magneto-electronics, thermo-electronic, ferroelectric, topological spintronics, and so on. Herein, a specific review is provided with systematical summarizations and refinements on the recent advances of the electrical transport in group-V elemental ultrathin 2D layers from the blossoming field of research, while comprehensive discussion and some recommendations are put forward, with an expectation of broadening and deepening understanding of the family of 2D layers. Lastly, we provide critical motivation and challenge for future explorations in this promising territory.

在对二维（2D）层状磷的研究取得突破性进展之后，由于其独特而有希望的电传输特性，包括具有直接和理想能量的半导体特性，近年来，V组元素超薄2D层受到了广泛关注。带结构，出色的载流子迁移率，施加应变下的可控和可调特性，电场和磁场，沿面内和面外方向的高度各向异性现象，拓扑传输状态和负泊松比。因此，对这种2D材料系列的研究迅速进行，同时为纳米级科学及其在光电子，磁电子，热电子，铁电，拓扑自旋电子学等。在本文中，对来自新兴研究领域的V组元素超薄2D层中电输运的最新进展进行了系统的总结和改进，进行了专门的综述，同时提出了全面的讨论和一些建议，并有望得到扩展并加深对2D图层系列的了解。最后，我们为这个充满希望的领域的未来勘探提供了关键动力和挑战。同时提出了全面的讨论和一些建议，以期扩大和加深对2D图层系列的理解。最后，我们为这个充满希望的领域的未来勘探提供了关键动力和挑战。同时提出了全面的讨论和一些建议，以期扩大和加深对2D图层系列的理解。最后，我们为这个充满希望的领域的未来勘探提供了关键动力和挑战。