The invention discloses a bamboo floor processing method and belongs to the technical field of bamboo product manufacturing. The bamboo floor processing method comprises the step of adding an additive prepared by mixing cattle hide paste, cardanol, sulfur and zinc stearate according to the mass ratio of 6:3:2:3 in the process of cooking a bamboo raw material, wherein the adding amount of the additive is 2% to 4% of the mass of the bamboo raw material. According to the bamboo floor processing method, a certain amount of the additive prepared by mixing the cattle hide paste, the cardanol, the sulfur and the zinc stearate according to the specific ratio is added in the process of cooking the bamboo raw material, so that the painting effect of a final product is improved, and the paint color is more natural and mellower.