The invention provides a display method of a curved surface display panel, and a curved surface display apparatus, belongs to the technical field of display, and can at least solve the problem that aconventional planar display panel is bent to a curved surface display panel and brightness distortion is caused. The display method of the curved surface display panel includes steps: obtaining a radius of curvature of the curved surface display panel and obtaining image data, wherein the image data comprises grayscales corresponding to sub-pixels; and determining a data voltage output to the sub-pixel according to the radius of curvature and the grayscale corresponding to any sub-pixel.