The catalytic process of two-stage conversion of ethanol into jet fuel, wherein the second step is the hydrogenation of aromatic hydrocarbons obtained in the first step, has been studied. It has been shown that at 400A degrees C and an ethanol space velocity of LHSV = 2 h(-1), aromatic hydrocarbons are produced, which are hydrogenated on a Pt/C catalyst in an autoclave at 80-100 atm and T = 200-250A degrees C for 1.5 h with a final yield of naphthenic hydrocarbons on a fed ethanol basis of 15-20%.