The method of diachronic-synchronous research presents the historical experience of the formation of legal terms and concepts of Chinese branch terminology. The level and features of its formation are revealed. The distinctive features and peculiarities of Chinese terminology and their influence on the formation of international terms are shown. The terminological level is determined, as well as the meaning and meanings of these terms. The philosophical, theoretical and subject-practical problems of the study of the Chinese terms "right" and "law" are analyzed. An interpretive series of these terms, their meaning and meanings in the ancient Chinese language, when they meant the “degree of guilt and innocence” of the subject, his ability to “clearly determine the truth and untruth”, as well as the word “刑” xíng xing, which meant “punishment”, was established. In the modern PRC, the concept of "right" "法律" fǎlǜ falu has the meaning of "norm of behavior", which is determined by the state and relies on its coercive power to ensure the functioning of the legal foundations of its life, as well as the legal status of internal security agencies, including the country's penitentiary system. When analyzing Russian, English and Chinese research literature, the emphasis is on Chinese terminological sources. The authors introduced the "terminological triad" method to understand the process of formation of the Chinese term and its interpretation.