Abstract: Disclosed is a device for confirming recycle of a disposable medical handpiece, which can prevent imprudent recycle of the medical handpiece that should be discarded after one time. The device includes a signal conversion unit which receives DC power from the handpiece and detects voltage applied to a driving motor of the handpiece to convert the voltage into a rated signal and output the rated signal; a control unit which receives the output signal of the signal conversion unit, detects an initial operation state of the driving motor based on the output signal and then outputs a lamp switching signal when the driving motor is operated again after a predetermined operation interval is elapsed; and a lamp which is connected with an output terminal of the control unit and turned on in response to the lamp conversion signal.