Power grid cross subsidy accounting method considering accurate clear subsidy

The invention provides a power grid cross-subsidy accounting method considering accurate clear complementation. The method comprises the following steps: step 1, dividing supportability user kilowatt-hour power cross-subsidy into two parts, namely basic cross-subsidy and floating cross-subsidy; 2, obtaining the total demand of the cross subsidy of the power grid through the cross subsidy of the indemnificatory users of each voltage level obtained in the step 1; 3, obtaining an allocation method of cross subsidy between industrial and commercial users of different voltage levels according to the electricity consumption of each voltage level; and step 4, on the basis of the cross-subsidy allocated to the industrial and commercial users of each voltage level obtained in the step 3, further allocating the cross-subsidy between the industrial and commercial users executing different electricity prices at the same voltage level to obtain an accurate allocation scheme of the cross-subsidy of the per kilowatt-hour el