Solid　oxide　fuel　cells　(SOFCs)　are　found　to　have　potential　application　in　energy　conversion　technology　due　to　their　characteristics　i.e.,　good　modularization,　better　fuel　efficiency,　and　lesser　toxic　products　(CO2,　SOx,　and　NOx).　Mostly　the　electrolytic　materials　with　ionic　or　protonic　conductivity,　undergo　degradation　at　various　operating　conditions　which　must　be　prevented.　Based　on　the　above-mentioned　problems,　perovskites　are　considered　as　one　of　the　wonderful　classes　of　electrode　and　electrolyte　materials　with　hydrocarbon　fuels　and　retentivity　of　inherent　stability　at　reducing/oxidizing　atmosphere.　In　this　review,　recent　developments　in　perovskite　electrolyte　materials　of　solid　oxide　fuel　cells　are　summarized　with　prospects.　Here,　our　main　purpose　is　to　deliver　a　brief　tutorial　corresponding　to　the　structure,　properties,　and　electrochemical　behavior　of　perovskite-based　electrolytes　in　test　cells　with　various　dopants　together　and　inherited　challenges　regarding　this　material　family.　Several　novel　design　strategies　for　the　optimization　of　cell　performance　i.e.,　interface　engineering,　strain　modulation,　and　defect　engineering　have　been　discussed　in　detail.　In　addition　to　this,　a　perspective　has　been　proposed　on　the　development　routes　or　designs　for　perovskite　oxide-based　materials　with　high　performance　in　energy　conversion　and　storage　applications　as　well　as　the　way　forward　to　cope　with　the　challenges　involved　in　the　research　route　regarding　the　performance　of　each　component.　©　2021