The invention discloses an electric quantity and electric charge accounting system, and the system comprises: an input unit which is used for inputting user information, a last reading display number,a current reading display number, and an electric charge amount obtained by a marketing system; a selection unit which is used for selecting a user electric charge calculation mode; a calculation unit which is used for calculating the electric quantity of each time period of the current month according to the reading readings and calculating the electric charge according to the electric quantityof the current month and the corresponding electricity price; a display unit which is used for displaying the total electric charge condition of the user or respectively displaying the electric chargecondition of each component; and a storage unit which is used for storing various information and calculation results of the user. According to the invention, each electric charge component can be automatically calculated; meanwhile, all the electric charge components can be independently displayed, so that when a difficult problem occurs, an electric charge accountant can audit a certain part without being influenced by other factors, and can invite colleague work division and audit confirmation for all the parts of the electric charge, and the working efficiency is further improved.