The invention provides a touch detection method for a bendable projected capacitive touch panel. The touch detection method comprises the following steps of: pressing or bending a projected capacitive touch panel; detecting the capacitance change values of the projected capacitive touch panel; converting the capacitance change values into a touch input signal; and outputting a corresponding control signal according to the touch input signal. Compared with the prior art, the type of a control command can be determined by the method according to the punctate change and/or the linear change of the capacitance change values of the panel, and the movement speed, the scaling and the current working mode of a window can be controlled respectively according to the bending angle, the bending area, the bending state or the flattening state of the panel by the method.