The preset disclosure relates to a flexible display screen and an electronic device. The flexible display screen includes: a display screen body having a flat position and a bendable position; and a support plate disposed on a non-display surface of the display screen body; wherein the support plate comprises a flat plate and a bending portion; the flat plate is located at the flat position, and configured to support the display screen body; the bending portion is located at the bendable position and bent to fit the bendable position of the display screen body, and includes a plurality of deformation holes spaced from each other.