A high temperature high pressure catalytic hydrogenation device comprises a reaction tube, a gas tube, a reaction collection tube, and a vacuum pump, which are connected in sequence. The reaction tube is a sealed tube. A sample tube and a hydrogen reaction tube arranged under the sample tube are arranged in the reaction tube. The periphery of the reaction tube is provided with a heating furnace. The device also comprises a cold trap collector, and the reaction collection tube is arranged in the cold trap collector. The device has the advantages that the device does not need hydrogen stored in steel cylinders or pressurization provided by an air compressor, and is very safe and reliable; the operation is convenient and simple; the structure is simple, the cost is low, and the reaction efficiency is high.