The present invention provides a tissue treatment tool and signal processing method of the same. The present invention is capable of processing a vibrating signal generated according to a feedback from the soft/hard tissue contacted by the tissue treatment tool during the treatment process so as to obtain an electrical processing signal with respect to a feedback vibration status with respect to soft/hard tissue. According to the electrical processing signal, it is capable of determining the location of the tissue treatment tool or the tissue thickness while treating the target tissue, thereby generating a display signal for displaying the location on a display unit or issuing a stopping signal for stopping providing power to the tissue treatment tool automatically in response to thickness status so as to prevent the soft tissue around the treated tissue from being damaged.
