Network supervision, as a kind of emerging supervision method, has exerted importantly active impact on China’s politics, economy, society and so on, in the practice, however, network subject encounters legal predicament while implementing freedom of speech and supervision rights, as a result, the right of network supervision needs to be legally acknowledged, legislation principle for the protection of network opinion supervision subject should be established such as giving priority to right protection and least limit as well as punishment afterwards, the related laws should be set up and perfected, News Law should be promulgated as soon as possible, and the related provisions in Criminal Law and State Compensation Law should be revised to ensure public network opinion freedom and network supervision right implementation and to realize network supervision legitimization.