A method for managing a display screen which comprises at least two display areas, comprising: detecting a first display effect damaged value of a first display area with stains on the surface in the at least two display areas, the first display effect damaged value indicating the influence degree of stains on the surface of the first display area to the display effect of the first display area; comparing the first display effect damaged value with a predetermined threshold value, and outputting a first comparison result, wherein the threshold value is used for judging whether to perform a display effect adjustment on any one of the at least two display areas; and adjusting, based on the detected first display effect damaged value, the display effect of the first display area with stains to match the display effect of the first display area with a corresponding display effect of a second display area in the at least two display areas without stains on the surface, when the first display effect damaged value is larger than the threshold value; the method being characterized in that the display screen is a touch screen and the step of detecting the first display effect damaged value of the first display area with stains on the surface comprises: detecting a first capacitance value of the first display area in the at least two display areas and using a comparison relationship table between capacitance values and display effect damaged values to determine the first display effect damaged value corresponding to the detected first capacitance value. detecting a first display effect damaged value of a first display area with stains on the surface in the at least two display areas, the first display effect damaged value indicating the influence degree of stains on the surface of the first display area to the display effect of the first display area; comparing the first display effect damaged value with a predetermined threshold value, and outputting a first comparison result, wherein the threshold value is used for judging whether to perform a display effect adjustment on any one of the at least two display areas; and adjusting, based on the detected first display effect damaged value, the display effect of the first display area with stains to match the display effect of the first display area with a corresponding display effect of a second display area in the at least two display areas without stains on the surface, when the first display effect damaged value is larger than the threshold value; the method being characterized in that the display screen is a touch screen and the step of detecting the first display effect damaged value of the first display area with stains on the surface comprises: detecting a first capacitance value of the first display area in the at least two display areas and using a comparison relationship table between capacitance values and display effect damaged values to determine the first display effect damaged value corresponding to the detected first capacitance value. detecting a first capacitance value of the first display area in the at least two display areas and using a comparison relationship table between capacitance values and display effect damaged values to determine the first display effect damaged value corresponding to the detected first capacitance value.