Abstract: Hydrogenation of 3-carene which is a component of some special turpentine to prepare carane was studied in an autoclave with a mechanical stirrer. The single factor experiment was carried out, while Raney Ni and Pd/C were used under the conditions of catalysts dosage of 4 %-10 %, time 3-12 h, temperature 60-180 ℃ and the hydrogen pressure 3-9 MPa. It resulted in the optimal reaction conditions as 6 % of Raney Ni based on the mass of 3-carene, pressure 9 MPa, temperature 100 ℃, and time 3 h. At these conditions, the yield of carane reached 96.7 % with a selectivity of 92.8 % and a conversion rate of 99.5% of carene.