The utility model provides a charging device, the charging device comprises a charging device and an intelligent ring, the intelligent ring is installed in the charging device, and the intelligent ring is provided with a contact matched with the charging device. The charging device comprises a fixing unit, an
electrode and a circuit board, the fixing unit comprises a first bearing part and a charging column, the charging column is installed on the first bearing part, the outer surface of the charging column comprises a top surface, a plane side wall and a curved surface side wall, the plane side wall is connected with the top surface, and the curved surface side wall is connected with the
electrode. The charging column comprises a top surface, a plane side wall and a circuit board, the top surface is provided with a curved-surface side wall, the curved-surface side wall is connected with the plane side wall, the top surface, the plane side wall and the curved-surface side wall define the outer surface of the charging column, the
electrode is arranged on the plane side wall, the circuit board is installed below the first bearing part, and the circuit board is electrically connected with the electrode. The technical scheme is convenient for a user to automatically align the intelligent ring to the electrode of the charging column, and is simple and convenient to use and high in charging efficiency.