Non-enzymatic　electrochemical　glucose　sensors,　representing　the　fourth　generation　of　glucose　sensors,　exhibit　significant　advantages　including　high　response　speed,　resistance　to　biofouling,　low　cost,　and　ease　of　preparation.　However,　current　glucose　sensing　materials　face　challenges　such　as　high　detection　limits　and　poor　anti-interference　performance,　which　limit　their　practical　applications.　Herein,　we　have　developed　an　innovative　catalyst　composed　of　Cu(OH)2　nanograsses　decorated　on　a　bimetallic　nanoporous　structure　through　a　simple　two-step　oxidation　method.　The　resulting　catalyst　forms　a　unique　sandwich-like　structure,　where　Cu(OH)2　nanograsses　with　hierarchical　morphologies　uniformly　grow　both　on　the　external　surface　and　within　the　porous　channels　of　nanoporous　CuAg.　This　configuration　ensures　the　full　utilization　of　the　high　specific　surface　area　and　thereby　provides　a　high　concentration　of　active　sites,　contributing　to　excellent　catalytic　performance　for　glucose　oxidation.　This　developed　composite　catalyst　demonstrates　an　ultra-low　detection　limit　of　100　nM,　a　high　sensitivity　of　approximately　5.16　mA　mM-1　cm-2,　a　wide　linear　response　range　up　to　8　mM,　and　excellent　anti-interference　ability.　These　outstanding　electrocatalytic　properties　arise　from　the　synergistic　effect　of　the　nanoporous　CuAg＇s　excellent　conductivity　and　mass　transfer　capabilities,　combined　with　the　multiple　active　sites　of　the　in　situ-grown　hierarchical　Cu(OH)2　nanograsses.　This　work　highlights　a　unique　approach　to　designing　glucose　oxidation　catalysts　with　remarkable　electrocatalytic　performance,　utilizing　a　straightforward　two-step　oxidation　method　to　assemble　hierarchical　hydroxide　morphologies,　offering　a　promising　avenue　for　the　practical　application　of　advanced　glucose　sensors.