Earphone and method for detecting earphone wearing state

The invention discloses an earphone and a method for detecting an earphone wearing state. The earphone comprises a controller, a reference sensor, a state judging sensor and a memorizer memorized with production line testing capacitance values of the reference sensor and the state judging sensor, wherein the reference sensor and the state judging sensor are connected with the controller. The reference sensor and the state judging sensor are capacitance-type sensors, and the reference sensor is arranged at the position in the earphone isolated from the outside environment. When the earphone is started up, the controller confirms influencing parameters of the environment to capacitance values of the capacitance-type sensors according to a detected capacitance value of the reference sensor and a production line testing capacitance value of the reference sensor and judges the earphone wearing state according to the influencing parameters of the environment to capacitance values of the capacitance-type sensors, a detected capacitance value of the state judging sensor and a detected production line testing capacitance value of the state judging sensor. By means of the scheme, the erroneous judgment problem of the earphone wearing state of the capacitance-type sensors can be effectively solved.