The invention discloses a transforming system and a transforming apparatus. The transforming system and the transforming apparatus relate to a power electronic technology and are used to solve problems of transforming apparatuses in the prior art that magnetic flux leakage is severe and performance is poor. The transforming system comprises a primary side transforming apparatus and a secondary side transforming apparatus. The primary side transforming apparatus comprises a primary side magnetic core, and a primary winding is wound around the primary side magnetic core. The secondary side transforming apparatus comprises a secondary side magnetic core, and a secondary winding is wound around the secondary side magnetic core. The transforming system is characterized in that the primary side magnetic core is further provided with a primary side shielding part that is used to bind magnetic energy leaking from the primary side magnetic core; the secondary side magnetic core is further provided with a secondary side shielding part that is used to bind magnetic energy leaking from the secondary side magnetic core. The transforming system and the transforming apparatus of the invention can be applied to various wireless charging applications that involve transformer coupling.