The invention discloses a preparation method of titanium dioxide with low oil absorption. The preparation method comprises the following steps: (1) mixing rutile titanium dioxide, water and a first dispersing agent to obtain slurry; (2) sanding the slurry obtained in the step (1) and optionally diluting and heating the sanded material; (3) mixing the slurry obtained in the step (2) and a second dispersing agent and then performing primary curing; (4) adding a sodium aluminate solution and an acid solution at the same time into the material obtained after primary curing and performing secondary curing; and (5) adjusting the pH value of the material obtained after secondary curing to 7-7.8 and performing third curing. The titanium dioxide with low oil absorption, obtained through the method disclosed by the invention, has the advantages of excellent dispersity and low oil absorption; particularly, the dispersity of the prepared titanium dioxide can reach 5.76-6.5HB and the oil absorption can be reduced to 16.5-18g/100g so that the prepared titanium dioxide has relatively good fluidity and color contrast property.