A parameter adjustment method, wherein the method is applied to a terminal comprising a first screen and a second screen, and wherein the first screen is at a side surface of the terminal and the second screen is at one of a front surface or a back surface, or both the front surface and the back surface, of the terminal, the method comprising: receiving (201, 301) a first touch operation acting on an icon of a target parameter when the icon is displayed in a predetermined region of the first screen; receiving the first touch operation acting on any position within the predetermined region when the icon of the target parameter is not displayed in the predetermined region of the first screen and displaying the icon on the first screen; displaying an adjustment bar of a target parameter at the first screen according to the first touch operation in a continuous process, by: acquiring a pressure value of the first touch operation acting on the predetermined region; determining a display parameter of an icon of the target parameter according to the pressure value when the pressure value is less than a predetermined threshold; the display parameter comprises at least one of sizes and colors of the icon, when the display parameter comprises a size, a magnitude of the pressure value is positively correlated with the magnitude of the size, when the display parameter comprises a color, the color can be switched when the first touch operation is received; displaying the icon of the target parameter in the first screen with the display parameter; and performing a vibration feedback and displaying the adjustment bar of the target parameter in the first screen when the pressure is equal to the predetermined threshold; displaying the adjustment bar of the target parameter in the first screen when the pressure value is greater than the predetermined threshold, wherein the target parameter is associated with an application displayed at the second screen; receiving a second touch operation at the adjustment bar; adjusting a parameter value of the target parameter according to the second touch operation. receiving (201, 301) a first touch operation acting on an icon of a target parameter when the icon is displayed in a predetermined region of the first screen; receiving the first touch operation acting on any position within the predetermined region when the icon of the target parameter is not displayed in the predetermined region of the first screen and displaying the icon on the first screen; displaying an adjustment bar of a target parameter at the first screen according to the first touch operation in a continuous process, by: acquiring a pressure value of the first touch operation acting on the predetermined region; determining a display parameter of an icon of the target parameter according to the pressure value when the pressure value is less than a predetermined threshold; the display parameter comprises at least one of sizes and colors of the icon, when the display parameter comprises a size, a magnitude of the pressure value is positively correlated with the magnitude of the size, when the display parameter comprises a color, the color can be switched when the first touch operation is received; displaying the icon of the target parameter in the first screen with the display parameter; and performing a vibration feedback and displaying the adjustment bar of the target parameter in the first screen when the pressure is equal to the predetermined threshold; displaying the adjustment bar of the target parameter in the first screen when the pressure value is greater than the predetermined threshold, wherein the target parameter is associated with an application displayed at the second screen; acquiring a pressure value of the first touch operation acting on the predetermined region; determining a display parameter of an icon of the target parameter according to the pressure value when the pressure value is less than a predetermined threshold; the display parameter comprises at least one of sizes and colors of the icon, when the display parameter comprises a size, a magnitude of the pressure value is positively correlated with the magnitude of the size, when the display parameter comprises a color, the color can be switched when the first touch operation is received; displaying the icon of the target parameter in the first screen with the display parameter; and performing a vibration feedback and displaying the adjustment bar of the target parameter in the first screen when the pressure is equal to the predetermined threshold; displaying the adjustment bar of the target parameter in the first screen when the pressure value is greater than the predetermined threshold, wherein the target parameter is associated with an application displayed at the second screen; receiving a second touch operation at the adjustment bar; adjusting a parameter value of the target parameter according to the second touch operation.