A biometric index calculating method and apparatus using biometric information is disclosed. A biometric index calculating device using biometric information, comprising: a transceiver for receiving biometric information collected by a user terminal or a biometric information collecting device; A storage unit for storing an index calculation formula, a received biometric information, a calculated biometric index, and a daily body index to calculate a biometric index and a daily body index using biometric information; An extracting unit for extracting the stored biometric information and the index calculation formula; And a calculating unit that calculates a biometric index and a daily body index using the received biometric information and the preset index calculating formula, wherein the biometric index includes at least one of a dietary behavior index, an activity index, a sleep index, and a heart rate index And a daily body index is calculated using a daily living body index. The present invention also provides a living body index calculating apparatus using living body information.
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