The invention belongs to the technical field of petrochemical treatment and particularly relates to a lubricating oil hydrogenation device. The lubricating oil hydrogenation device comprises a raw material pretreatment decompression tower and storage tanks which are connected with the raw material pretreatment decompression tower separately through pipelines; the storage tanks are connected with a lubricating oil hydrogenation unit separately through pipelines, and the lubricating oil hydrogenation unit is provided with a control device and a caution device; the control device comprises a computer, an air speed volume control unit, a pressure control unit, a temperature control unit and a hydrogen-to-oil ratio control device; the caution device comprises an alarming device; the air speed volume control unit, the pressure control unit, the temperature control unit and the hydrogen-to-oil ratio control device are connected with the computer separately through lines; and the alarming device is connected with the computer through a line. According to the lubricating oil hydrogenation device, the structure is simple, the operation is convenient, the production efficiency can be increased in a production processing process, the labor intensity for working personnel is lowered, and the production processing cost of companies is reduced.