Biocompatible　materials　with　large　specific　surface　areas　can　play　a　crucial　role　in　direct　electron　transfer　between　redox　proteins　and　an　electrode　surface.　Here,　we　report　zirconium　phosphate-carbon　aerogel　(ZrP-CA)　composites　with　a　large　specific　surface　area　and　uniform　nanopore　distributions　as　matrix　for　glucose　oxidase　immobilization.　The　immobilized　glucose　oxidase　displays　two　stable,　well-defined　redox　peaks　with　an　electron　transfer　rate　constant　of　9.34　s(-1)　in　nitrogen-saturated　phosphate-buffered　saline　(PBS)　solution　(0.1　M,　pH　7.0),　at　a　scan　rate　of　100　mV　s(-1).　The　modified　electrode　was　also　used　as　a　glucose　biosensor,　which　was　found　to　exhibit　a　linear　calibration　range　of　0.12-2.0　mM,　sensitivity　of　5.56　mu　A　mM(-1)　cm(-2)　at　an　applied　potential　of　-0.5　V,　and　detection　limit　of　34　mu　M　based　on　a　signal-to-noise　ratio　of　3.　After　80　scan　cycles,　the　decreases　in　the　peak　current　were　less　than　8　%,　indicating　good　stability　of　the　as-prepared　ZrP-CA.　The　unique　characteristics　of　the　ZrP-CA　nanocomposite　make　it　a　good　matrix　for　protein　immobilization　and　biosensor　preparation.