Legalistic figures seems to be negative, and they are considered cold-blooded, merciless,and harsh. In fact, in Pre-Qin Dynasty, legalistic figures are the main characters on the political stage. They kept up with the times, tried to make the extraordinary contributions to win the immortal reputation, and even sacrificed themselves to participate in social activities and to promote political reform. Therefore, legalistic figures are the contemporary leadership of society.
In the Spring and Autumn Period, Guan Zhong, as a minister of the Qi State, promoted reform and focused on the economy. The Qi State got stronger and wealthier, and took over the domination of China. In the Warring States period, Shang Yang esteemed the present over the past, and with this thought, promoted political and economic reform of the Qin State, so that the Qin State grew to be the strongest state of the seven states. During the period of the Spring and Autumn and the Warring States, all vassals contended for hegemony, and all states attempted to be rich and powerful, implementing over and over innovations and refoms. Reforms can be considered the main factor of social development. The effects of reforms, however, depend on the status of the conductors and the inclination of the vassals.
There are two types of reform implement in the Warring States period. One is that the vassals support the reform and their ministers take on the implementation. The other is that the vassals conduct reforms personally. According to the above, this thesis will study on the two types of reform implement in the Warring States period.