The present disclosure provides a charging system with multiple charging rectifier cabinets parallel connected thereof including X charging rectifier cabinets and a changing unit including a charging gun and a charging control unit configured to detect charging parameters of the charging gun, wherein X is equal to and greater than 2; each of the X charging rectifier cabinets including a power control unit, N power modules and a power distribution matrix circuit with N charging interfaces and a plurality of controlled switch units, the N charging interfaces connected to the N power modules via the plurality of controlled switch units, the power control unit configured to generate multiple groups of switch signals based on the charging parameters, and each group of switch signals configured to control the plurality of controlled switch units within the power distribution matrix circuit to be turned on or turned off.