In　this　work,　a　series　of　N-doped　porous　carbons　(NPCs)　are　prepared　via　high　internal　phase　emulsion　(HIPE)　template,　followed　by　growing　polyaniline　(PANI)　arrays　and　subsequent　carbonization/activation.　As　evidenced　by　SEM　and　N2　absorption/desorption　results,　the　NPCs　have　interconnected　hierarchical　porous　structures　with　abundant　micropores　and　mesopores　inside.　The　morphology　and　porous　structures　of　NPCs　can　be　tuned　by　changing　aniline　concentration　and　polymerization　time,　respectively.　With　the　increase　of　aniline　concentration　or　polymerization　time,　the　porous　structure　of　NPC　becomes　more　and　more　serried,　however　too　high　aniline　concentration　(>0.75　M)　makes　the　porous　structure　become　sparse,　which　is　because　excess　PANI　will　nucleate　itself　and　make　it　detach　from　the　surface　of　NPC.　As　a　result,　the　specific　surface　area　(SSA)　of　NPCs　first　increases　to　1769　m2/g　and　then　decreases.　Electrochemical　performances　of　the　obtained　NPCs　are　evaluated　in　detail.　The　test　results　indicate　that　both　aniline　concentration　and　polymerization　time　have　notable　influence　on　the　specific　capacitance　of　NPCs.　The　specific　capacitance　of　NPC　obtained　under　optimized　conditions　reaches　up　to　241　F/g　at　1　A/g　with　a　retention　ratio　of　97.8%　after　10,　000　cycles　at　a　high　current　density,　proving　its　excellent　energy　storage　capability　and　cycling　stability.　In　two-electrode　system,　the　NPC　provides　an　energy　density　of　27　Wh/kg　at　a　power　density　of　400　W/kg　and　remains　a　high　energy　density　of　19　Wh/kg　at　a　high　power　density　of　10002　W/kg.　©　2023　Elsevier　B.V.