With　the　rapid　development　of　energy　Internet　in　recent　years,　scholars　have　been　studying　more　about　electric　energy　routers.　Firstly,　this　paper　briefly　described　the　concept　of　energy　Internet　and　electric　energy　router,　introduced　the　basic　structure　and　functions　of　electric　energy　router　in　detail.　Then　integrated　the　research　status　and　related　applications　of　scholars　on　distribution　network　architecture　transformation,　topology,　control　scheme　and　energy　management　strategy,　routing　algorithm,　communication　technology　of　electric　energy　router　in　recent　years.　Finally,　the　prospect　was　made　in　the　future　development　trend　and　the　challenges　of　electric　energy　routers　that　may　encounter.　　©　2023　IEEE.