In　order　to　improve　the　activity　of　hydrogenolytic　debenzylation　catalyst　and　reduce　the　dosage　of　noble　metal　palladium　during　the　synthesis　of　hexanitrohexaazaisowurtzitane（CL‑20），carbon　supports　were　prepared　by　ball‑milling/carbonization　method　using　sodium　gluconate　as　a　raw　material.　The　effects　of　carbonization　temperature，heating　rate　and　additive　addition　of　sodium　gluconate　on　the　support　structure　and　the　catalytic　activity　of　the　corresponding　Pd（OH）2/C　catalysts　in　the　hydrogenolytic　debenzylation　of　hexabenzylhexaazaisowurtzitane（HBIW）and　tetraacetyldibenzylhexaazaisowutzitane（TADB）were　explored.　The　pore　structure，particle　morphology，crystal　phase　structure，chemical　composition　and　surface　chemical　properties　of　carbon　supports　were　characterized　by　nitrogen　sorption　isotherm　measurement　（BET），scanning　electron　microscope（SEM），transmission　electron　microscopy（TEM），powder　X‑ray　diffraction（XRD），element　analysis　and　temperature　programmed　desorption　（TPD）.　The　results　show　that　the　optimized　carbonization　condition　of　sodium　gluconate　was　calcination　at　700　℃　with　a　heating　rate　of　10　℃·min-1　in　the　presence　of　additive，NaHCO3，which　could　adjust　the　puffing　carbonization　of　sodium　gluconate.　The　received　carbon　supports　have　rich　hierarchical　pore　structure　and　appropriate　amount　of　surface　oxygen　containing　groups，and　the　corresponding　Pd（OH）2/C　catalysts　exhibit　high　activities　in　the　hydrogenolytic　debenzylation　reaction　of　HBIW　and　TADB.　©　2022　Institute　of　Chemical　Materials,　China　Academy　of　Engineering　Physics.　All　rights　reserved.