In this age of digital economy, issues relating to the data security and personal privacy of multimedia systems are increasingly manifesting in the form of unprotected data. The level of governance capability for data protection determines whether the data security and personal privacy of multimedia systems can be protected and developed in the future. In recent years, China has introduced laws and regulations on the protection of personal information, personal privacy, data security, and cybersecurity. Although data protection still needs to be improved, China has been refining the framework and provisions on data security governance through certain practices and the adoption of supporting regulations. The country aims to rapidly promote the current governance capability of data security and gradually form a good institutional environment to support international collaboration in the realm of global data security.