Abstract: A monitor cursor controlling device provided with a signaling element, includes a cursor controlling unit, which is used for controlling a position of a cursor on a monitor of a computer, including an operating interface, generating an electrical signal in accordance with a manipulation motion performed by a user; a controller electrically connected to the operation interface, receiving and processing the electrical signal to generate a cursor controlling signal for controlling the movement of the cursor on the monitor; a signaling element electrically connected to the controller, and generating a perceivable signal for the user in response to an enabling signal generated by the controller, and a detecting memos electrically connected to the controller for receiving the cursor controlling signal to execute a cursor controlling operation, and having the controller to generate the enabling signal when at least one of a distance the cursor is moved on the monitor and a period of operation time of the device is g