A method and a device for detecting physiological indexes. The method includes: obtaining a body temperature fluctuation value associated with a user, where the body temperature fluctuation value is at least obtained by a first difference value between a current shell temperature associated with the user and a basal temperature associated with the user (101)； and determining a current physiological index associated with the user based on the body temperature fluctuation value associated with the user (102). The method can be applicable in a detection process for physiological indexes and can perform health-related operations based on the detected physiological indexes including a body temperature measuring result.
