Abstract: The legislative optimization of the greenhouse gas voluntary emission reduction program is both the intrinsic driving force of the program itself and a response to the call of the times. The general approach to optimizing the legislation for the voluntary emission reduction program involves meeting the requirements of the "streamlining of administration, delegating powers, and improving regulation and services" reform in terms of management concepts, adopting the departmental regulations in terms of legislative form, and refraining from establishing administrative licenses in management methods, instead adopting an administrative confirmation model of "announcement + registration". As the legislative outcome of the optimization of the voluntary emission reduction program, the internal structure, management links and normative content presented in Measures for the Administration of Voluntary Greenhouse Gas Emission Reduction Trading (For Trial Implementation) (hereinafter referred to as "the Administrative Measures") are better choices that have been made after considering multiple factors. The Administrative Measures are only departmental regulations which cannot carry too much content, and many rules and forward-looking systems need to be gradually improved. To ensure the smooth, orderly and healthy operation of the voluntary emission reduction program, it is necessary to establish a sound normative system and legal protection system that is compatible with the Administrative Measures, and establish the status of the Administrative Measures within the legal normative system of the carbon trading market.