The invention relates to the field of oil refining and discloses a method for producing lubricant base oil. The method includes: (1), guiding raw oil and hydrogen-containing material flow into a hydrotreating reaction area containing a hydrotreating catalyst for reaction to obtain hydrotreated oil; (2), guiding the hydrotreated oil and the hydrogen-containing material flow into a catalytic dewaxing reaction area containing a catalytic dewaxing catalyst for reaction to obtain dewaxed oil; (3), guiding the dewaxed oil and the hydrogen-containing material flow into a hydrorefining reaction area for reaction to hydrorefined oil; (4), guiding the hydrorefined oil into a separation area for separation to obtain the lubricant base oil. By adopting the method, the lubricant base oil which is high in yield, high in viscosity index and high in quality can be obtained. The method can be implemented by slightly modifying existing devices and processes, so that investment cost of the devices is saved greatly.