A method for reproducing a low noise signal for a solid state imaging device which can reduce not only the reset noise but the amplifier noise around frequency zero, avoiding the saturation of the voltage conversion part in a bright scene, is accomplished by controlling a reset pulse of a CCD imaging device according to the result of comparing the output signal of the CCD imaging device with a reference signal value. When the output signal of the CCD imaging device is smaller than the reference signal value, the reset pulse is not applied to the CCD imaging device. Thereat, a pixel signal is reproduced as a differential signal between two signals sampled at two points with an interval of T0, the amplifier noise around frequency zero being reduced in the pixel signals.