A fingerprint identification apparatus and method capable of simultaneously identifying fingerprint image and oxygen saturation is provided. The method may include allowing for a finger to be placed on a light reception surface of a photoelectron sensor module, enabling emission of an invisible light and a visible light, receiving light intensity signals corresponding to the invisible light penetrated into the finger and then reflected by the finger and the visible light reflected from the finger using the photoelectron sensor module, converting the light intensity signals to photocurrent signals by the photoelectron sensor module, converting the photocurrent signals to a corresponding first digital signal and a second digital signal by an analog/digital converting module, and outputting a fingerprint image corresponding to the first digital signal and a finger oxygen saturation image corresponding to the second digital signal by the processor module.一種同時辨識手指影像及血氧濃度之指紋辨識裝置及其方法,包括以下步驟:將一手指按壓在一光電傳感器模組的光接收表面上;分別發出一可見光線及一非可見光線;光電傳感器接收自手指表面反射的可見光線及接收穿透到手指內部後再反射的非可見光線;光電傳感器將可見光線及非可見光線的光強度訊號轉換成光電流訊號;以一類比/數位轉換模組將光電流訊號分別轉換成一第一數位訊號及一第二數位訊號;以一處理器模組將第一數位訊號輸出成一手指指紋圖像以及將第二數位訊號輸出成一手指血氧圖像進行辨識。本發明亦提供執行上述辨識方法之指紋辨識裝置。1‧‧‧指紋辨識裝置10‧‧‧功能電路板11‧‧‧光電傳感器模組111‧‧‧光電感測元件1111‧‧‧可見光感測晶片1112‧‧‧非可見光感測晶片12‧‧‧第一發光元件13‧‧‧第二發光元件14‧‧‧類比/數位轉換模組15‧‧‧處理器模組151‧‧‧指紋辨識程式152‧‧‧血氧辨識程式153‧‧‧圖像驗證程式2‧‧‧手指VL‧‧‧可見光線IL‧‧‧非可見光線IS1‧‧‧第一光強度訊號IS2‧‧‧第二光強度訊號PS1‧‧‧第一光電流訊號PS2‧‧‧第二光電流訊號DS1‧‧‧第一數位訊號DS2‧‧‧第二數位訊號
