The invention provides a braille display panel, a braille display device and a braille display method, and relates to the technical field of display. Fine control can be conducted on point position keys used for braille display so as to accurately display braille. The braille display panel comprises an underlayer substrate and multiple display units arranged on the underlayer substrate; each display unit comprises multiple switches and multiple point position modules which are in one-to-one correspondence; each point position module comprises an electrode arranged on the underlayer substrate, a thermo-sensitive layer arranged on the surface, back onto the underlayer substrate, of the electrode and a point position key arranged on the side, back onto the electrode, of the thermo-sensitive layer; the electrodes are connected with the switches corresponding to the point position modules where the electrodes are located; the switches are used for receiving control commands of braille display, electrical signals are transmitted to the corresponding point position modules according to the control commands, corresponding point position key protrusions are controlled through the thermo-sensitive layers in the point position modules. The braille display panel is used for displaying the braille.