The present invention provides a biosensor with exercise amount measuring function. The biosensor comprises a microprocessor for operating various signals and data a movement sensing module for detecting a user’s movement signal, and is connected with the microprocessor a biological signal detection module for detecting the user’s biological signals, and is connected with the microprocessor a flash memory for storage the exercise amount and biological signal data operated by the microprocessor and a display unit, which is connected with the microprocessor, for displaying the operated exercise amount and biological signal data of the user.本發明提供一種具運動量測定功能之生物感測器,該生物感測器係包括:一微處理器,以運算處理各種信號與數據;一運動感測模組,其係與該微處理器相連接,用以檢測使用者之運動信號;一生物信號檢測模組,其係與該微處理器相連接,用以檢測使用者之生物信號;一快閃記憶體,其係與該微處理器相連接,以儲存該微處理器運算後之運動量及生物信號資訊;以及一顯示單元,其係與該微處理器連接,用以顯示該運算處理後之使用者之運動量及生物信號資訊。