In China’s household appliances price battle,there appears the phenomenon of the position-exchange of the main roles,the essence of which is the promotion of the position of commerce.For China,a country in the process of deepening reform and developing market economy,it is significant that we rethink the position and function of commerce in national economy.This paper discusses the reason of the promotion of the position of commerce,points out how commerce functions in the market in a new way and proposes some suggestions for commercial enterprises,industrial enterprises and government on the attitude they should adopt towards the change of the position of commerce.