An intelligent device and wearing method. The method includes, for an intelligent device having a first sensor and a second sensor, obtaining a measurement value of the first sensor, when the measurement value of the first sensor is greater than a first threshold, determining that the intelligent device is in a worn state, when the measurement value of the first sensor is less than a second threshold, determining that the intelligent device is in a not-worn state, where the first threshold is greater than the second threshold, when the measurement value of the first sensor is between the first threshold and second threshold, turning on the second sensor, turning on the second sensor, obtaining a measurement value of the second sensor, and determining, according to the measurement value of the second sensor, that the intelligent device is in the worn state or in the not-worn state.