The embodiment of the invention provides a charging device which is used for charging mobile equipment and comprises a charging main body, two connecting wires and a pair of plugs, the charging main body is provided with a shell and an electricity storage unit arranged in the shell, and the electricity storage unit is used for storing electric quantity to supply power to the mobile equipment; thetwo connecting lines are respectively and electrically connected between the shell and the pair of plugs, and the pair of plugs is electrically connected with the mobile equipment, so that the charging main body charges the mobile equipment. According to the charging device and the Bluetooth headset charging system provided by the embodiment of the invention, the two connecting lines provided withthe pair of plugs are respectively connected to the charging main body; the combined structure of the two connecting lines and the charging main body enables the charging device to be carried by a user in a charging state and charge mobile equipment at any time, thereby providing the charging device which is convenient to carry. In addition, the embodiment of the invention also provides a Bluetooth earphone charging system.