The invention discloses and relates to the technical field of preparation of titanium dioxide, and particularly relates to a titanium dioxide organic treatment system. The titanium dioxide organic treatment system comprises a titanium dioxide conveying belt, a feed hopper, a spiral metering conveyer, an organic treating agent vessel, a boosting and atomizing device, a mixing treatment hopper, a blender, a spiral conveyer and a flash drying machine, wherein the titanium dioxide conveying belt conveys the titanium dioxide to the feed hopper, the titanium dioxide in the feed hopper is conveyed tothe mixing treatment hopper through the spiral metering conveyer, the organic treating agent vessel is connected with the boosting and atomizing device through a pipeline, the boosting and atomizingdevice conveys an organic treating agent to the mixing treatment hopper, the mixing treatment hopper is connected with the blender, and a mixed material in the blender is conveyed to the flash dryingmachine through the spiral conveyer. The invention provides the titanium dioxide organic treatment system which is simple in structure and high in quality stability.