If you change the residents' electricity payment account online, when the residents buy and sell water and electricity transfer, or when the residents rent the house, or some other reasons, some residents want to change the original electricity payment bank account. Generally speaking, the change of the electricity payment bank account must be carried out in person at the business hall of the local power supply bureau, sometimes the required information is not brought, but also have to run back and forth many times, which is very laborious. Recently, the unified service platform of China Southern Power Grid launched the online change electricity payment account service.