Apparatus and method for removing noise from biosignals

According to the present invention is disclosed noise reduction apparatus and method of the bio-signal. Predetermined period of time the noise removal device of the bio-signal is measured while the degree of similarity calculation section calculating a similarity between one of the biometric signal and other bio-signal of the physiological signal; And it characterized in that it comprises a noise reduction to remove noise by using the degree of similarity of the any one of the bio-signal. According to the invention, it is effective and reduce the noise of biological signals effectively, does not distort the waveform shape of the bio-signal.