An alarm notification apparatus includes an event detector for monitoring vital information of a body, such as a blood pressure and electrocardiogram, to check whether an anomalous event has occurred to the body. A reliability evaluator evaluates reliability of a result of detection of the anomalous event in the event detector. A notifier selects at least one addressee according to the reliability among plural predetermined addressees, and notifies the selected addressee of occurrence of the anomalous event. Preferably, a storage area is used for storing error log data expressing a false detection of an anomalous event in spite of non-occurrence of an anomalous event. Assuming that the event detector detects the anomalous event, the reliability evaluator obtains the reliability according to the error log data. Thus, it is possible to reduce influence of the false detection due to measurement artifact.