Biological characteristic recognition device and method and biological characteristic template registration method

The invention provides a biological characteristic recognition device and method and a biological characteristic template registration method. The biological characteristic recognition device comprises a sensor and a security chip, wherein the sensor is used for sensing biological characteristic information; the security chip is used for storing biological characteristic templates, obtaining the biological characteristic information from the sensor, conducting image pretreatment and characteristic extraction on the obtained biological characteristic information and conducting characteristic comparison with the stored biological characteristic templates so as to determine the biological characteristic recognition result. Due to the fact that the whole biological characteristic recognition process is completed in the independent security chip, compared with traditional logic isolation, security is essentially improved.