A physiological parameters monitoring method of wearable device is disclosed. The wearable device comprises a sensing unit and a processing unit. The physiological parameters monitoring method comprises the following steps: the sensing unit senses the heartbeat for producing the measurement signals which comprise a plurality of the heartbeat cycles the processing unit stores the measurement signals and executes the interval calculation by the measurement signals for producing the time interval of the regular heartbeat the processing unit calculates the at least one first physiological parameter according to the time interval of the regular heartbeat the processing unit executes resampling and interpolation the processing unit makes the measurement signals perform the frequency analysis to produce the frequency domain signals and the processing unit obtains the at least one second physiological parameter by analyzing the frequency domain signals.本案關於一種穿戴式裝置之生理參數監測方法,穿戴式裝置包含感測單元以及處理單元,生理參數監測方法包含步驟:感測單元感測心跳脈動而產生包含複數個心跳週期的量測信號;處理單元儲存量測信號並透過量測信號執行間隔演算以產生規律心跳的時間間隔;處理單元依據規律心跳的時間間隔計算至少一第一生理參數;處理單元將量測信號進行重新取樣或內插;處理單元將量測信號進行頻譜分析以產生頻域信號;以及處理單元透過分析頻域信號以獲得至少一第二生理參數。S11至S16、S115、S145‧‧‧生理參數監測方法之流程步驟
