This disclosure provides a method and a module for simulating a keyboard used in an electronic device having a hot key. The method for simulating a keyboard at least includes the following steps. First, whether the hot key is pressed is checked. If the hot key is pressed, a pressing time of the hot key is calculated. If the pressing time is over a first predetermined time, a first scanning code is sent. When the pressing time is within the first predetermined time, whether to send a second scanning code is determined according to the pressing time.