After the deregulating of the power retail market

the commodity attribute of electric energy is prominent. The priceof electric energy is determined by the quality of electric energy

and the user has the right of free option. For power sale companies

how to reasonably determine the sale price according to the powerquality becomes a burning question. A power quality pricing method based on Stackelberg game is proposed

which contains multi sellers and multiusers. The concepts of internal reference price ofconsumers and“selfselection constraints”are introduced

and the selection model of users is established. On this basis

the user revenue optimal models and power sale company revenue optimal model are established. Stackelberg game is used to find the optimalprice and solve the power quality pricing problem. The case study shows that the proposed power pricing method based on Stackel berg game can reasonably determine power sale price

satisfy thedemand of power quality and revenue of users

and ensure the profit level of power suppliers.