This paper constructs the logical relation framework of corporate governance system. The logical starting point of corporate governance system is the individual's free will, and the logical system of governance system is successively expanded, which is the first analytical framework. Individuals have free will, so that they can interact with the environment freely and autonomously, thus form corresponding attitudes, and attitudes determine behavior, behavior can train competence, competence can dominate resources, competence and resources together form power, power dominates interests form rights, the right system constitutes the governance system and produces the corresponding governance performance.This paper constructs the autonomy degree governance index. Combined with domestic and foreign index construction methods, on the basis of constructing the logical relationship framework of corporate governance system, this paper establishes the principle basis of index construction. According to the power status of each stakeholder, this paper constructs the degree of autonomy governance index for the first time, which is used to measure the degree of autonomy of each stakeholder of the company, and analyzes the relationship between the degree of autonomy and performance, so as to test whether the conclusion derived from the logical relationship framework conforms to the reality.This paper constructs a new quantitative analysis method of rights relation. Competence dominates resources to form power, while power dominates interests to form rights. And competence is contained in human resources, and human resources plus material resources can represent rights, so the formation of rights can be measured from "invested resources". The right is put into the hierarchy or market to gain control, so the implementation of the right can be measured from the "exercise of control". "Revenue received" represents the result of the enforcement of rights. Generally speaking, the relationship of rights includes three parts:the formation of rights, the implementation of rights, and the results of the implementation of rights. In this paper, the empirical analysis indicators are also selected from these three parts to measure the right relationship.This paper empirically analyzes the relationship between autonomy degree and governance performance. It would also be the first time that autonomy degree analysis was linked to performance analysis, the dynamic panel model is used to estimate the empirical analysis results, the empirical analysis results show that the higher the degree of autonomy of each stakeholder is, the better the corporate governance performance is, and there is an obvious positive correlation.The main innovation points of this paper are as follows:1) Analyzing corporate governance system from the perspective of individual interaction. The interaction between individuals forms individual integration system, the individual integration system in corporate governance system is the various stakeholders, so we can construct index from a stakeholder perspective, rather than from a commonly used institutional perspective, because the mechanism is also formed by the interaction between individuals. 2) Autonomy Degree Index is a brand new index. Autonomy Degree Index should be constructed for the first time. There are related indexes in domestic and foreign literature, such as regular index, but their meanings are different from this index. 3) Establishing a new quantitative analysis method of rights relations. Autonomy Degree Index is measured by the size of power, and it selects three parts of the right index:invested resources, exercise of control rights and acquisition of benefits, which is a key step for quantitative analysis of the degree of autonomy. 4) It is also the first time to link the degree of autonomy analysis with performance analysis, and the dynamic panel model is adopted for analysis, which is relatively new.