One of the major philosophical schools that advocates for rule of law, is the combination of "laws", "his position of power" and " certain techniques" in Spring Autumn and Warring States period, that is the Legalism. In which "law" is the content of policies and ordinances governing; "certain techniques" is the strategic basis for carrying out the rule of law, including methods and tricks of appointment, dismissal, supervision, examination, penalty, "his position of power" is the guarantee and enhancement of the position and power of the feudal rule of law. Legalism was the voice representing the newly emerging landlord’saristocracy, fighting to eradicate the remnants of the old regime, establishing the central feudalism in China in 221BC.