A method for detecting abnormal heartbeat signal and an electronic apparatus are provided. The method includes the following steps: receiving the heartbeat signal under test of the user obtaining the physiological information of the user corresponding to the heartbeat signal under test selecting a heartbeat sample from a heartbeat sample database comparing the heartbeat signal under test to the selected heartbeat signal in order to obtain a correlation coefficient between the heartbeat signal under test and the heartbeat sample and comparing the correlation coefficient with a predetermined threshold, so as to determine whether the heartbeat signal is the abnormal heartbeat signal.本發明提出一種異常心跳訊號檢測方法及其電子裝置。異常心跳訊號檢測方法包括下列步驟。接收使用者的待測心跳訊號,並且對應所述待測心跳訊號,取得使用者的生理資訊。依據生理資訊,由心跳樣本資料庫選擇一個心跳樣本,並且比對待測心跳訊號與心跳樣本以取得待測心跳訊號與心跳樣本的相關係數。比較相關係數與預設閥值,藉以判斷待測心跳訊號是否為異常心跳訊號。S110、S120、S130、S140、S150、S160、S162、S170‧‧‧異常心跳訊號檢測方法的步驟
