An electronic device for processing touch input is disclosed. An electronic device may comprise a touchscreen and a processor configured to perform a first function based on a touch input made by an external object and received through the touchscreen, to determine whether the electronic device is grounded when a variation in a capacitance for the touch input increases to a preset first threshold or more, to adjust a first capacitance for the touch input where the capacitance variation occurs when the electronic device is determined to not be grounded, and to determine whether to perform a second function based on the touch input where the capacitance variation occurs based on the adjusted first capacitance.