Charging billing method and related equipment

The invention provides a charging billing method and related equipment. The method comprises the following steps: receiving total electric quantity required by single charging of a vehicle sent by a target charging pile, an initial electric quantity percentage corresponding to each charging period in a plurality of charging periods, and an end electric quantity percentage; calculating a first charging total amount according to the total electric quantity required by single charging of the vehicle, the initial electric quantity percentage and the end electric quantity percentage corresponding to each charging time period and the electricity price corresponding to each charging time period; obtaining a second charging total amount generated by a preset billing system; calculating a first absolute value of a difference value between the first charging total amount and the second charging total amount; and when the first absolute value is greater than or equal to a preset threshold value, sending a first alarm me