The invention discloses an adhesive material for a laminated composite bonding transition layer of hydrogenated nitrile rubber and unsaturated non-polar rubber and a preparation method of the adhesivematerial. The adhesive material for the transition layer comprises the following components in parts by weight: 60-70 parts of carboxyl nitrile rubber, 30-40 parts of natural rubber, 20-40 parts of general carbon black, 10-20 parts of white carbon black, 45-50 parts of silane coupling agent, 4-6 parts of tackifying resin, 5-8 parts of zinc oxide, 1-2 parts of stearic acid, 3-3.5 parts of accelerator and 1-1.5 parts of valcanizer.