The present invention provides a conductive gel sleeve and preparation method thereof. The conductive gel sleeve is applied on a transmitted wave segment instrument. The conductive gel sleeve comprises: a monomer, a cellulose, a crosslinking agent and initiator, wherein the monomer is acrylic acid, and the cellulose is cellulose nanocrystal.本發明提供一種傳導凝膠套及其製備方法,該傳導凝膠套用於一發射波段儀器上,該傳導凝膠套包括一單體、一纖維素、一交聯劑及一起始劑,其中該單體為一丙烯酸(Acrylic acid, AA),該纖維素為一奈米微晶纖維素(Cellulose nanocrystal, CNC)。