In　this　research　endeavor,　we　report　the　successful　synthesis　of　an　aminosulfonic-based　ceramic　additive,　HLDSA,　was　prepared　by　replacing　part　of　phenol　with　HLDLP,　a　depolymerization　product　of　hydrolysis　lignin,　through　Co@C　metal　catalysts　in　the　synergistic　alkali-catalyzed　depolymerization　of　hydrolysis　lignin　to　achieve　high-value　lignin　utilization.　The　preparation　and　application　conditions　of　the　depolymerized　hydrolysis　lignin　HLDLP　and　its　modified　product　HLDSA　were　studied,　together　with　a　brief　analysis　of　their　mechanism　of　action.　During　application　of　ceramic　additive,　the　HLDSA　showed　a　rather　excellent　dispersing　and　flexural　strength　performance,　with　a　minimum　slurry　outflow　time　of　20.81　s　and　a　maximum　flexural　strength　of　2.79　MPa,　which　was　a　significant　improvement　over　that　of　the　blank　sample　(59.29　s　and　1.77　MPa).　Meanwhile,　HLDSA　was　contrasted　with　other　8　ceramic　additives　that　are　widely　available　on　the　market.　The　application　performance　of　HLDSA　was　also　better　than　that　other　ceramic　additives　on　the　market,　indicating　that　HLDSA　has　a　promising　application.　©　2024　Elsevier　Ltd　and　Techna　Group　S.r.l.