A cardiopulmonary resuscitation monitoring apparatus includes: a detecting unit configured to obtain a detection signal of a timing of chest compression during execution of cardiopulmonary resuscitation a pulse oximeter configured to detect a change of a blood volume at the timing of the chest compression based on the detection signal, and configured to obtain an oxygen saturation from the change of the blood volume an evaluating unit configured to perform evaluation related to the cardiopulmonary resuscitation based on the oxygen saturation and an outputting unit configured to perform an outputting operation in accordance with a result of the evaluation.
