A Bluetooth earphone combined with a pair of eyeglasses includes an earphone body and an engaging member. The earphone body includes a recess in which two axle holes and ratchets are designed. The engaging member includes a coupling portion, a ratchet wheel provided at the bottom of the engaging member, and two shafts provided on the ratchet wheel. The shafts are engaged in the axle holes, and the ratchet wheel are coupled with the ratchets, such that the engaging member can rotate at a proper angle relative to the earphone body with the shafts as a center of rotation and can be sustained in an adequate angle. As such, the Bluetooth earphone is flexibly combined with a pair of eyeglasses owned by a user in usage.