A heart sound processing method for detecting cardiopathy includes: partitioning heart sound data to obtain a plurality of heart sound data fragments converting the heart sound data fragments with continuous wavelet transformation to obtain CWT (continuous wavelet transformation) data converting the heart sound data fragments with short-time Fourier transformation to obtain STFT (short-time Fourier transformation) data and comparing the CWT data and the STFT data with at least one ultrasound data sample of cardiopathy to seek at least one correlation between time and frequency for identifying cardiopathy.
