As we are entering the age of digital economy，data has become an essential production factor. Therefore，all kinds of big data application scenarios pose unprecedented challenges for data security，and previous security solutions are unable to solve today’s data security problems anymore. This report not only comprehensively reviews the current situation of data security governance at home and abroad from the aspects of policies，regulations，standards and technologies，but also points out the main problems and challenges at present. Based on that，the report further introduces basic principles and measures of data security governance，and prospects the development trend of data security governance.