Information processing method and system applied to charging process of electricity marketing system

The invention provides an information processing method and system applied to the charging process of an electricity marketing system. The information processing method applied to the charging process of the electricity marketing system includes the steps of obtaining electricity consumption information of all users of a charging unit in a database of the electricity marketing system, establishing a user list and metering point relations according to metering point information, establishing a transformer set list according to transformer information corresponding to all the metering points, transmitting the user list, the meter point relations and the transformer set list to a calculation interface of a charging module of the electricity marketing system, calculating electric charge data of the users through the calculation interface according to the set electric charge calculation procedure, uploading the user list, the metering point relations and the transformer set list to the electricity marketing system, and renewing the database of the electricity marketing system according to the user list, the metering point relations and the transformer set list which are uploaded to the electricity marketing system.