Heteroatom　doped　carbonaceous　material　with　high　specific　surface　area　(SSA)　is　vital　for　assembling　advanced　supercapacitor.　Here,　a　moderate　and　valid　strategy　is　proposed　to　synthesize　N,　S　co-doped　porous　carbons　(NSPCs)　which　are　derived　from　porous　resorcinol-melamine-formaldehyde-thiourea　(RMFT)　resins　via　high　internal　phase　emulsion　(HIPE)　template.　The　morphology,　structure,　porous　characteristics　and　chemical　ingredients　of　the　prepared　NSPCs　are　investigated　by　SEM,　XRD,　Raman　spectra,　and　XPS　systematically.　The　obtained　NSPCs　show　typical　open-cell　morphology.　As　the　molar　ratio　of　thiourea　to　melamine　(T/M)　increased　from　0:1　to　2:1,　the　SSA　of　NSPC　increases　gradually　from　927　to　1721　m2 g−1.　Electrochemical　tests　show　that　when　T/M　is　2:1,　the　specific　capacity　of　NSPC　reaches　213.5 F　g−1　at　1　A　g−1.　After　10,000　charge–discharge　cycles　at　10 A　g−1,　the　retention　ratio　of　specific　capacitance　is　99.6%,　indicating　an　excellent　cycling　stability.　Excellent　performances　together　with　facile　preparation　make　NSPC　via　HIPE　template　a　potential　candidate　as　electrode　of　advanced　supercapacitors.　©　2022　Wiley　Periodicals　LLC.