A vibrating gyroscope in which harmonic components can be removed relatively easily and which can detect a rotational angular velocity accurately. The vibrating gyroscope 10 comprises a vibrator 12 in which detecting pieces 16a and 16b and a driving piece 16c are created on sides of a vibrating member 14, inverting amplifier circuits 24 and 26 for amplifying output signals of the detecting pieces 16a and 16b, a comparator circuit 32 for shaping waveform of output signals of the inverting amplifier circuits 24 and 26, a phase compensating circuit 34 for adjusting a phase of the output signal of the comparator circuit 32 and for feeding the output signal back to the driving piece 16c to stably vibrate the vibrating member, a differential circuit 38 for finding a difference of the output signals of the inverting amplifier circuits 24 and 26 and a synchronous detector circuit 40 for detecting the output signal of the differential circuit 38 in synchronism with the signal of the comparator circuit 32.