An optimization method for pricing models is studied and worked out

which is aimed at establishing a price menu consisting of two-part tariff

capacity price and energy price of industrial users with a capacity at or above 315 kVA. Firstly

the power transmission and distribution costs are allocated using the postage stamp method with customers' power consumption correction index. Secondly

the load characteristics indices of the customers at different voltage levels are analyzed. According to the economical principle of customers' electricity fees

the customer selection of basic price or capacity is pre-judged. Thirdly

the pre-judging conditions of the two-part tariff options are designed. Then

according to the conditions and the pre-judged results

a model of linear equations is established to calculate all kinds of alternative price schedule. Finally

the model is verified by the real data set of a province. The results show that the model can ensure not only the recovery of total cost but also the prediction that the price category the pre-judged users are in is the most economical.