A display processing method and device are provided. The method is applied to a rotatable three-dimensional display device including a rotatable display panel, the method includes: obtaining model information about an image model in a to-be-displayed image, the image model including one or more attribute sets including triangular faces constituting the image model; traversing coordinate information about vertices of each triangular face in each attribute set according to association relationship among the attribute sets; generating display data for the display panel at each phase according to the coordinate information about the vertices of each triangular face; and displaying an image according to the display data at each phase when the display panel is at the each phase.