The present disclosure provides a display method for a splicing display screen, which belongs to the technical field of image display, wherein the splicing display screen includes a plurality of display panels spliced with each other, and the display method includes: determining initial gray-scale compensation data according to first gray-scale data for each pixel in current frame of image data and a pre-generated gray-scale compensation data table; acquiring temperature influence data of current frame of image data, and filtering each temperature influence data according to preset filter parameter information to obtain a gray-scale compensation coefficient; determining target gray-scale compensation data according to the gray-scale compensation coefficient and the initial gray-scale compensation data; and compensating a gray scale of the current frame of image data according to the target gray-scale compensation data to obtain compensated frame of image data.