Virtual mouse and operating method thereof

A virtual mouse is disclosed. The virtual mouse is coupled to an electronic device. The virtual mouse includes a touch unit, a detecting unit and a processing unit. The touch unit receives at least one touch event and outputs an input signal in accordance with each the at least one touch event individually. The detecting unit detects the at least one touch event to obtain a first parameter corresponding to each the at least one touch event individually. The processing unit compares the first parameter corresponding to each the at least one touch event with a first default value individually to obtain a first comparing result corresponding to each the at least one touch event. The processing unit transmits or not transmits the input signal corresponding to each the first comparing result to the electronic device.