Of course, the terms of the format, the legal regulation can guarantee a certain level of freedom of contract market participants to promote market fairness and justice. However, if too much emphasis on this point, not only those who stubbornly insist on the idea of people's desire to be washed away by Xiqiu - respected the principle of freedom of contract to the ultimate goal of promoting economic development has been restrained, but will limit the format of the terms of the positive value play, thereby reducing the overall market and social efficiency and effectiveness, resulting in more unfair.