PROBLEM TO BE SOLVED: To precisely determine the shape of a cardiac murmur.SOLUTION: A cardiac murmur determination device comprises: a cardiac sound data acquisition part which acquires cardiac murmur data of a biological cardiac sound such as a human cardiac sound a power transition calculation part which calculates the temporal power transition of the cardiac murmur data a moment calculator for calculating the multi-order moment of the power transition from the distribution of the power transition on time series and a determination part which determines the type of the biological cardiac murmur on the basis of the multi-order moment.