This invention relates to a method and device thereof for measuring heart rate. The method includes following steps: sensing biosignals of a measured object;tranfering the biosignals to digital signals;calculating heart rate of the measured object using time domain analysis and frequency domain analysis according to the digital signals, respestively;detecting whether the measured object is in motion or not, if the measured object is in motion, electing the heart rate calculated by frequency domain analysis to show, if the measured object is in non-motion, judging whether the measuring is in the beginning or not, if the measuring is in the beginning, electing the heart rate calculated by time domain analysis to show, if the measuring is not in the beginning, judging whether the heart rate calculated by frequency domain analysis and the heart rate calculated by time domain analysis is close or not, if the heart rate calculated by frequency domain analysis and time domain analysis is close, electing the heart rate calculated by time domain analysis to show, if the heart rate calculated by frequency domain analysis and time domain analysis is not close, electing the heart rate calculated by frequency domain analysis to show.本發明公開一種測量心率的方法及其裝置,包括:感測受測者生物訊號;將該等生物訊號轉化為數位訊號;針對該等數位訊號同時進行時域分析及頻域分析而分別取得受測者的心率;感測受測者是否處在運動狀態,如果受測者處在運動狀態,則選擇頻域分析所取得的受測者心率進行顯示,如果受測者處在非運動狀態,則判斷是否剛開始進行測量心率,如果判斷結果為剛開始進行測量,則選擇時域分析所取得的受測者心率進行顯示,如果判斷結果不是剛開始進行測量,則比較時域分析與頻域分析所取得的心率是否接近,如果結果為接近,則選擇時域分析所取得的受測者心率進行顯示,如果結果為不接近,則選擇頻域分析所取得的受測者心率進行顯示。10‧‧‧微處理器20‧‧‧光體積感測器201‧‧‧光源模組202‧‧‧光電感測器30‧‧‧三軸加速度傳感器40‧‧‧模數轉換器50‧‧‧顯示終端
