A security chip, a biometric feature identification method, and a biometric feature template registration method, wherein the security chip acquires a biometric feature information from a sensor for detecting biometric feature information, a memory for storing the biometric feature template, and the sensor. A processor for performing image preprocessing and feature extraction on the acquired biometric feature information and performing feature comparison with a biometric feature template stored in the memory to determine a biometric feature identification result, The biometric feature template is generated by the processor obtaining biometric feature information from the sensor at the registration stage, and performing image preprocessing and feature extraction on the obtained biometric feature information. The sensor, the memory, and the processor are the security chip. Is accumulated. Detection, storage, and processing of information relating to biometric features are all performed by the security chip, and the physical isolation from the system environment is greatly improved in security compared to the conventional logical isolation.
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