Law is to open one of the categories of institutions of higher learning, one of China's top ten universities disciplines, including law, political science, public security science and sociology of four main parts.Law is also called the law, legal science, is based on law, legal phenomenon and its regularity of science that studies the content.It is the study of specialized knowledge and law related issues, is about the legal problems of knowledge and theory system.Law is about the science of law.The direct purpose of law, is to maintain social order, and by order of the construction and maintenance, to realize social justice.As take law as the research object of law, its core is in for the research of order and justice, is the knowledge of order and justice.Legal thoughts first legalist philosophy originated from the spring and autumn period and the warring states period.The word law in China, the pre-qin period is referred to as "" study of forms, from the han dynasty began to have the name of the" law ".In the west, the ancient Roman jurists ulpian (Ulpianus) to "the law" (the ancient Latin words of Jurisprudentia) is defined as: and the god of the transaction, the concept of justice and injustice of learning.