In　this　work,　we　report　an　all-solution　route　to　produce　semi-transparent　high　efficiency　perovskite　solar　cells　(PSCs).　Instead　of　an　energy-consuming　vacuum　process　with　metal　deposition,　the　top　electrode　is　simply　deposited　by　spray-coating　silver　nanowires　(AgNWs)　under　room　temperature　using　fabrication　conditions　and　solvents　that　do　not　damage　or　dissolve　the　underlying　PSC.　The　as-fabricated　semi-transparent　perovskite　solar　cell　shows　a　photovoltaic　output　with　dual　side　illuminations　due　to　the　transparency　of　the　AgNWs.　With　a　back　cover　electrode,　the　open　circuit　voltage　increases　significantly　from　1.01　to　1.16　V,　yielding　high　power　conversion　efficiency　from　7.98　to　10.64%.　©　2016　IOP　Publishing　Ltd.