A review of the Chinese contract law shows that the contract system in the Chinese civil basic law mainly implements formal equal protection of property rights. The special transaction law for protecting state-owned assets has become a system, but most of it has not been integrated into the system of contract law. There are no special transaction rules for the protection of the private economy, but the judicial concept of equal protection of property rights, which includes formal equal protection, legal equal protection, and comprehensive equal protection, has already influenced the judicial practice of contract law. In general, equal protection in contract law needs to comply with two rules. One is the substantive rule, which takes formal equality as the principle and substantive equality as the exception, and the other is that the justification of the concept of substantive equality must follow at least four rules of argumentation, namely reverse falsification, exploring substantive differences, paying attention to the scope of application, and achieving reasonable responses. The ambiguity of the substantive legal status of subjects of state-owned property ownership, the multiplicity of authorized representatives, the breadth of authorized scope, and the complexity of authorized nature, determine that the protection of property rights in Chinese contract law should take formal equality as the principle and substantive equality as the exception and that differentiated treatment should be given to subjects of state-owned and those of private property rights in specific systems. Specifically, in the adjustment of liquidated damages for state-owned land use rights transferring contracts and the determination of the scope of administrative agreements, the concept of formal equality should be implemented. In the distinction between precontracts and non-binding agreements, typical cases of legal authorization restrictions in ultra vires agency or exercising the authority of duty agency beyond the duty, and the expansion of malicious collusion cases, substantive equality should be implemented. |