An exercise physiological sensing system, a motion artifact suppression processing method and a motion artifact suppression processing device for obtaining a stable exercise heart rate signal of a user during exercise are provided. The exercise physiological sensing system includes a bone conduction object, a signal-to-noise ratio analysis module, and a computation module. The bone conduction object has a physiological sensor. The physiological sensor detects a physiological signal from a detected area of the user. The signal-to-noise ratio analysis module is coupled to the physiological sensor and detects a stability of the physiological signal. The computation module is coupled to the signal-to-noise ratio analysis module and generates the stable exercise heart rate signal according to the physiological signal. Accordingly, the exercise physiological sensing system can effectively improve the detected stability of an exercise physiological signal.一種運動生理感測系統、抗動態雜訊處理方法與裝置,用於獲得使用者進行運動時的穩定運動心率訊號。本運動生理感測系統包括骨傳導本體、訊雜比分析模組以及運算模組。骨傳導本體具有一生理感測器。生理感測器偵測使用者的偵測區域上的生理訊號。訊雜比分析模組耦接至生理感測器並且偵測此生理訊號的品質穩定度。運算模組耦接至訊雜比分析模組並且依據此生理訊號產生穩定運動心率訊號。基此,本運動生理感測系統能夠有效地提升所偵測之運動生理訊號的穩定度。S701、S703、S705、S707、S709‧‧‧生理感測系統運作方法的步驟
