At present, energy storage technology has provided new development ideas for the future architecture of power distribution networks. This paper proposes a possible future architecture of distribution systems—low-voltage direct current micro-grids based on energy storage systems. It also discusses the features and advantages of this architecture of power distribution network, and the gap between current technology and this surmise. It concludes that the technology of low-voltage DC micro-grid and energy storage devices can already meet the technical needs, but there are still large gaps in the energy-volume ratio, energy-mass ratio and life span of the energy storage devices. With the development of energy storage technology, the future distribution network will have huge changes necessarily. This work is supported by National Natural Science Foundation of China (No. U1766208).