A charging device and a charging system are provided. The charging device includes a charging portion and a plurality of magnetic attracting portions. The plurality of magnetic attracting portions are arranged symmetrically with respect to the charging portion. Each of the plurality of magnetic attracting portions includes an N pole and an S pole. At least one of the N poles and/or at least one of the S poles serves as an attracting function pole of the magnetic attracting portion, and a pair of attracting function poles symmetrical with respect to the charging portion are different in polarity.