Existing research has shown that highly reliable network systems can not only significantly reduce their own operation and maintenance costs, but also greatly improve service efficiency. Quick and accurate qualitative analysis and quantitative evaluation of the reliability of distribution networks are essential for both correctly estimating the performance of actual networks and improving network design. This overview will summarize the existing research from four aspects: the current research status of network reliability, logistics network reliability, network reliability under cost constraints, and network reliability under transportation distance constraints, laying a foundation for research on reliability evaluation methods for distribution networks.