An earbud, comprising: at least two capacitive wearing sensors (1; 2), the at least two capacitive wearing sensors being arranged at different positions where a head of the earbud is in contact with skin tissues in an ear, and the earbud being determined whether to be in a worn state according to detected capacitance values of the at least two capacitive wearing sensors (1; 2); a capacitive touch sensor, the capacitive touch sensor being arranged on the head or a stem of the earbud away from the ear and being configured to detect a touch operation; and a detection processing circuit, the detection processing circuit being configured to detect and process capacitance signals detected by the capacitive wearing sensors (1; 2) and the capacitive touch sensor, and the capacitive wearing sensors (1; 2) and touch sensor being electrically connected with the detection processing circuit and sharing the detection processing circuit, wherein one of the at least two capacitive wearing sensors (1; 2) comprises three first capacitive sensing units (21; 22; 23), when the earbud is correctly worn, one of the three first capacitive sensing units (21; 22; 23) is in contact with a tragus of the ear, another one of the three first capacitive sensing units (21; 22; 23) is above an inter-tragus incisura of the ear, and yet another one of the three first capacitive sensing units (21; 22; 23) is in contact with an antitragus of the ear, a correctly-wearing threshold for the one of the three first capacitive sensing units (21; 22; 23) is greater than a correctly-wearing threshold for the another one of the three first capacitive sensing units (21; 22; 23), and a correctly-wearing threshold of the yet another one of the three first capacitive sensing units (21; 22; 23) is greater than the correctly-wearing threshold of the another one of the three first capacitive sensing units (21; 22; 23). at least two capacitive wearing sensors (1; 2), the at least two capacitive wearing sensors being arranged at different positions where a head of the earbud is in contact with skin tissues in an ear, and the earbud being determined whether to be in a worn state according to detected capacitance values of the at least two capacitive wearing sensors (1; 2); a capacitive touch sensor, the capacitive touch sensor being arranged on the head or a stem of the earbud away from the ear and being configured to detect a touch operation; and a detection processing circuit, the detection processing circuit being configured to detect and process capacitance signals detected by the capacitive wearing sensors (1; 2) and the capacitive touch sensor, and the capacitive wearing sensors (1; 2) and touch sensor being electrically connected with the detection processing circuit and sharing the detection processing circuit, wherein one of the at least two capacitive wearing sensors (1; 2) comprises three first capacitive sensing units (21; 22; 23), when the earbud is correctly worn, one of the three first capacitive sensing units (21; 22; 23) is in contact with a tragus of the ear, another one of the three first capacitive sensing units (21; 22; 23) is above an inter-tragus incisura of the ear, and yet another one of the three first capacitive sensing units (21; 22; 23) is in contact with an antitragus of the ear, a correctly-wearing threshold for the one of the three first capacitive sensing units (21; 22; 23) is greater than a correctly-wearing threshold for the another one of the three first capacitive sensing units (21; 22; 23), and a correctly-wearing threshold of the yet another one of the three first capacitive sensing units (21; 22; 23) is greater than the correctly-wearing threshold of the another one of the three first capacitive sensing units (21; 22; 23).