An apparatus for sensing a physiological signal comprises: two sensing units for respectively connecting to palms of a human being to receive a first electrocardiogram (ECG) signal； a filter unit for generating a second ECG signal by filtering the first ECG signal； an amplifying unit for generating a third ECG signal by amplifying the second ECG signal； an Analog-to-Digital converting unit for converting the third ECG signal into a digital signal； an operating unit for generating a plurality of analysis data by operational analyzing the digital signal； and a monitor unit for displaying the plurality of analysis data. Therefore, the accuracy of the ECG is improved and the operation is simplified.一種生理訊號感測裝置，係包含有：二感測單元，係分別與一待測者之雙手掌連接，以接收一第一心電訊號；一濾波單元，係將該第一心電訊號濾波後產生一第二心電訊號；一放大單元，係將該第二心電訊號放大後產生一第三心電訊號；一類比數位轉換單元，係將該第三心電訊號轉換成一數位訊號；一運算處理單元，係將該數位訊號經過一連串的運算處理後產生複數分析數據資料；以及一顯示單元，用以顯示該各分析數據資料。藉此，可使本發明達到提高心電圖記錄之準確性且操作簡便之功效者。
