The　protection　technology　of　the　distribution　network　with　distributed　generation　is　critical　for　the　safe　and　stable　operation　of　the　new　power　distribution　system.　As　large-scale　distributed　new　energy　sources　are　connected　to　the　distribution　network,　the　traditional　reclosing　and　current　three-stage　protection　cannot　meet　safe　operation　needs.　It　is　urgent　to　study　new　relay　protection　technologies　for　distribution　networks.　However,　the　distribution　network　protection　research　still　lacks　a　systematic　summary　and　induction.　Therefore,　this　paper　reviews　the　research　on　new　distribution　network　protection　based　on　the　structure　and　protection　requirements　of　the　distribution　network　with　distributed　generation.　First,　the　distribution　network　protection　configuration　is　introduced,　and　the　impact　of　distributed　generation　on　distribution　network　protection　under　different　working　modes,　access　capacities　and　locations,　and　different　types　of　power　supply　scenarios　is　analyzed.　Secondly,　we　analyze　and　summarize　the　protection　technology　based　on　the　current　research　on　short-circuit　protection　and　control　of　distribution　networks　with　distributed　generation　at　home　and　abroad.　Finally,　combined　with　the　research　status　of　distribution　network　protection　and　the　demand　for　distributed　new　energy　access,　the　research　direction　of　new　distribution　network　protection　under　the　high　penetration　rate　of　distributed　generation　is　discussed.　©　2023　Science　Press.　All　rights　reserved.