A method for monitoring the frequency and amplitude parameters of ventricular fibrillation (VF) during artificial perfusion of the heart is described. The method is based on spectral analysis of VF cardiosignal at 30 frequencies of 0.5 Hz width in the frequency range of 0.5-15 Hz and determining the frequency, amplitude, and relative weight of the 1st-3rd highest amplitude oscillations. The method can be used for monitoring the frequency and amplitude parameters of VF during long-term artificial perfusion of the heart.