A method for controlling deformation of a flexible screen, the flexible screen including: a flexible screen body, a metal layer attached to a back surface of the flexible screen body, and a current controlled deformation layer coated on the metal layer; the flexible screen further including a power supply circuit, and a current regulation circuit through which the power supply circuit is coupled to the metal layer; and the method for controlling the deformation of the flexible screen comprising: displaying a hardness regulation operation interface on the flexible screen, wherein a hardness regulation operation corresponding to a user input is performed on the hardness regulation operation interface; drawing an indicator which represents a current degree of hardness of the current controlled deformation layer, on the hardness regulation operation interface; detecting the hardness regulation operation performed on the hardness regulation operation interface; analyzing the hardness regulation operation to generate a current regulation signal; receiving the current regulation signal; controlling, by the current regulation circuit, intensity of current flowing in the metal layer to soften the current controlled deformation layer into a state in which a shape of the current controlled deformation layer changes freely based on the current regulation signal; making the flexible screen form a desired shape by means of bending or folding after the current controlled deformation layer is softened into a state in which a shape of the current controlled deformation layer changes freely; and controlling, by the current regulation circuit, intensity of current flowing through the metal layer to harden the current controlled deformation layer based on the current regulation signal, after the flexible screen is made to form the desired shape, so that the flexible screen is fixed in the desired shape. displaying a hardness regulation operation interface on the flexible screen, wherein a hardness regulation operation corresponding to a user input is performed on the hardness regulation operation interface; drawing an indicator which represents a current degree of hardness of the current controlled deformation layer, on the hardness regulation operation interface; detecting the hardness regulation operation performed on the hardness regulation operation interface; analyzing the hardness regulation operation to generate a current regulation signal; receiving the current regulation signal; controlling, by the current regulation circuit, intensity of current flowing in the metal layer to soften the current controlled deformation layer into a state in which a shape of the current controlled deformation layer changes freely based on the current regulation signal; making the flexible screen form a desired shape by means of bending or folding after the current controlled deformation layer is softened into a state in which a shape of the current controlled deformation layer changes freely; and controlling, by the current regulation circuit, intensity of current flowing through the metal layer to harden the current controlled deformation layer based on the current regulation signal, after the flexible screen is made to form the desired shape, so that the flexible screen is fixed in the desired shape.