A charging management system (CMS) and a charging management method for a charger of an electric vehicle are provided. The CMS includes a charger grid micro-dispatching system (CGMS) module, a charger battery management system (CBMS) module, a charger vehicle-dispatching management system (CVMS) module, a charger network management system (CNMS) module, and a charger charging management system (CCMS) module. An intelligent safety redundant strategy and a fault recording strategy are introduced, and multiple related parameters of a battery management system (BMS) are built in the CBMS module, so as to realize an intelligent active protection during charging the electric vehicle. Meanwhile, through analyzing the BMS and characteristic data of a power battery, cooperating with the CCMS module, adopting a multi-dimension data analyzing and controlling strategy, and outputting an optimized flexible curve current based on battery charging, life time of the battery is lengthened.