A biological sound collecting device includes: a sound collecting unit configured to collect biological sound of a subject a contact state detecting unit configured to detect a contact state of the sound collecting unit against a biological surface of the subject a control unit configured to determine, based on the contact state detected by the contact state detecting unit, whether or not to have the sound collecting unit collect the biological sound and an information notification unit configured to, in a case that the control unit determines not to have the sound collecting unit collect the biological sound, notify that the contact state detecting unit is not in contact with the biological surface of the subject.
