Electrocatalytic　CO2　reduction　has　been　developed　as　a　promising　and　attractive　strategy　to　achieve　carbon　neutrality　for　sustainable　chemical　production.　Among　various　reduction　products,　multi-carbon　(C2+)　compounds　with　higher　energy　density　are　desirable　value-added　products.　Herein,　we　review　and　discuss　the　recent　progress　and　challenges　in　preparing　C2+　products.　We　start　with　the　elaboration　of　the　most　recent　advancement　of　carbon-carbon　coupling　results　and　the　newly　proposed　mechanisms,　which　are　much　more　complicated　than　that　of　single-carbon　products.　The　complex　scenarios　involved　in　the　initial　CO2　activation　process,　the　catalyst　micro/nanostructure　design,　and　mass　transfer　conditions　optimization　have　been　thoroughly　discussed.　In　addition,　we　also　propose　the　synergistic　realization　of　high　C2+　product　selectivity　through　the　rational　design　of　the　catalyst　and　elaborate　on　the　influence　of　electrolytes　(anion/cation/pH/ionic　liquid)　using　theoretical　calculation　analysis　and　machine　learning　prediction.　Several　in　situ/operando　techniques　have　been　elaborated　for　tracking　the　structural　evolution　and　recording　the　reaction　intermediates　during　electrocatalysis.　Additional　insights　into　the　triphasic　interfacial　reaction　systems　with　improved　C2+　selectivity　are　also　provided.　By　presenting　these　advances　and　future　challenges　with　potential　solutions　related　to　the　integral　development　of　electrochemical　reduction　of　carbon　dioxide　to　C2+　products,　we　hope　to　shed　some　light　on　the　forthcoming　research　on　electrochemical　carbon　dioxide　recycling.　©　2023　The　Royal　Society　of　Chemistry.