Provided are a bioacoustic measurement apparatus, a bioacoustic measurement method, and a bioacoustic measurement program which can assist accurate bioacoustic measurements without an increase in the size or production costs of the device. A bioacoustic measurement apparatus (1) that performs bioacoustic measurements of a living body in a contact state in which contact is made with a body surface (S) of the living body includes: a first acoustic measurement device (M1) which is disposed in an accommodation space (SP1) that is sealed by the body surface (S) in the contact state and which is for performing bioacoustic measurements； a second acoustic measurement device (M2) which is disposed outside the accommodation space (SP1) and is for measuring sounds around the bioacoustic measurement apparatus (1)； and a control unit (4) which determines the bioacoustic measurement accuracy of the first acoustic measurement device (M1) on the basis of the difference in intensity of a specific frequency between a first sound measured by the first acoustic measurement device (M1) and a second sound measured by the second acoustic measurement device (M2) and provides a notification when the measurement accuracy is less than a predetermined value.L'invention concerne un appareil de mesure bioacoustique, un procédé de mesure bioacoustique et un programme de mesure bioacoustique qui peuvent aider à obtenir des mesures bioacoustiques précises sans augmentation de la taille ou des coûts de production du dispositif. Un appareil de mesure bioacoustique (1) qui pratique des mesures bioacoustiques sur un corps vivant en condition de contact, c'est-à-dire lorsqu'un contact est établi avec une surface corporelle (S) du corps vivant, comprend : un premier dispositif de mesure acoustique (M1) qui est disposé dans un espace de réception (SP1), fermé par la surface corporelle (S) en condition de contact, et qui sert à effectuer des mesures bioacoustiques ； un second dispositif de mesure acoustiqu
