A touch display method is configured for an electronic apparatus including a touch display module and an embedded controller. The touch display module includes a touch display device and a touch input controller. The method includes following steps: loading a BIOS to perform an initialization operation when the electronic apparatus has not loaded an operating system; defining a virtual input area in the touch display device; and further displaying an input interface on the virtual input area. Generate a touch event when the touch display device is touched and translate the touch event into a coordinate by the touch input controller. If the coordinate is in the input interface, the touch input controller outputs a function signal to the embedded controller through the hardware interface. The embedded controller translates the function signal into a scan code for the electronic apparatus to execute operations corresponding to the scan code.