Abstract: The difficulty of measuring serious cross subsidization and pricing of transmission and distribution are the main obstacles that restrict the direct power perchasing by large customers, and its difficulty in incorporating into market competition is also a problem electricity market are facing in China. Therefore, a new trading pattern is proposed by reference to constructing results of electricity market. That is, under the existing pattern of price policy, price difference between customers and units during transacting is set to be a dynamic price parameter, and the direct transaction can be finished without changing current price cross subsidization and realizing the linkage of price signals. Examples show that this method play positive role in incenting current market transaction and achieving participants common benefit.