The invention relates to a method for continuously producing pinane by pinene and a device therefor. The method comprises the following steps: (1) placing catalyst into a fixed bed reactor, replacing air with nitrogen, then preheating hydrogen before feeding the hydrogen into a gas and liquor mixer; preheating the pinene by a liquor preheater and then feeding the preheated pinene into the gas andliquor mixer; evenly mixing the preheated pinene with hydrogen in the gas and liquor mixer and then feeding the mixture into the fixed bed reactor to carry out hydrogenation; (2) cooling the hydrogenated material; (3) carrying out gas-liquid separation on the cooled reaction mass to obtain a menthane liquid product, returning the separated hydrogen to the fixed bed reactor. The invention also relates to a device for continuously producing pinane by pinene. The method and the device of the invention facilitate the improvement of the unstable state in the hydrogenation production of the pinane by the pinene, improve production efficiency, promote convenient utilization of the automatic control system in the production process and facilitate the reduction of human operational errors; in addition, the invention features stable quality of the product, safe operation, high efficiency and low energy consumption and convenient expansion of production scale.