This Invention disclosures a fingerprint identification apparatus and bio-signals sensing method using the same apparatus. The fingerprint identification apparatus comprises: a photovoltaic sensor, a light module and an identification unit in which the photovoltaic sensor with a fingerprint sensing face is to transform strength of light signals into electronic signals; the light module is to produce test light; the identification unit is electrically connected with the photovoltaic sensor. Wherein, there are different sensing modes with corresponding actions; in the first sensing mode, the identification unit senses a fingerprint photo by the photovoltaic sensor; in the second mode, the identification unit senses a spectrum of light to determine the information of blood sugar. Therefore, this fingerprint identification apparatus can detect the fingerprint and blood sugar at the same time.一種指紋辨識裝置與使用其之生理信號的感測方法,適用於感測手指的指紋圖像與血糖資訊。指紋辨識裝置包括光電感測器、光源模組與辨識單元。光電感測器具有指紋感測面,用以將光強度信號轉換為電信號,光源模組用以產生測試光束至所述手指,辨識單元電性連接於所述光電感測器。指紋辨識裝置依據不同感測模式有不同的作動,在第一感測模式時,辨識單元透過光電感測器感測指紋圖像;在第二感測模式時,辨識單元透過光電感測器感測光譜資訊以判斷血糖資訊。藉此,指紋辨識裝置可以同時進行指紋感測與血糖感測。