Conducting　polymers　such　as　polyaniline　have　demonstrated　their　considerable　superiorities　when　serving　as　promising　sulfur　host　materials　for　Li-S　batteries,　owing　to　their　strong　affinity　for　lithium　polysulfides　(LiPSs)　and　excellent　conductivity.　However,　less　polar　groups,　an　unstable　frame　structure　and　low　specific　surface　area　limited　their　electrochemical　performance.　Herein,　a　covalent　organic　framework　(COF)-like　conjugated　microporous　polyaniline　(CMPA)　with　an　extended　pi-conjugated　system　and　permanent　3D　microporosity　was　developed　as　a　modified　material　for　use　in　the　current　collector　of　the　sulfur　cathode　for　highly　efficient　Li-S　batteries.　This　multifunctional　CMPA　shows　the　integrated　nature　of　conjugated　microporous　polymers　(CMPs)　and　PANi,　ensuring　exceptionally　specific　surface　area,　nitrogen-rich　character,　stable　framework　and　high　conductivity.　Owing　to　these　superiorities,　the　current　collector　modified　by　CMPA　delivers　a　high　areal　capacity　(7.42　mA　h　cm(-2))　and　high　energy　density　(202.8　W　h　kg(cell)(-1))　even　under　a　sulfur　loading　of　8.72　mg　cm(-2).　These　outcomes　present　a　new　strategy　for　designing　advanced　cathodes　and　also　demonstrate　the　potential　of　CMPs　in　energy　storage　batteries.