A display panel, a display method thereof and a display device are disclosed. The display panel includes an electrochromic layer (101) and an electrolyte layer (102) arranged in a stacked manner, and at least one kind of colored charged particles (103) being provided in the electrolyte layer (102). While the electrochromic layer (102) is transparent, the display panel displays color of the colored charged particles (103). The display panel may further display the color of the colored charged particles, which increases diversity of the colors displayed by the display panel.