The invention provides a data governance system, comprising: a right management module, which is used for verifying the identity information of a user and granting the user operation authority according to the verifying result; A data source management module, configured to obtain the data to be treated from the data source database and send the data to be treated to the data management module; The task construction module is used for obtaining the data governance requirements input by the user, and constructing a data governance task for the data to be governed according to the data governance requirements and the user operation authority; The data governance module is used for receiving the data to be governed, performing data governance on the data to be governed according to the data governance task, and generating a governance result. Realized to the diversified data management function of the massive data, the user only needs simple operation to be able to carry on the data management task automatically, has the characteristic that the scope of application is wide, the data management way is more flexible, the data management time is short, thus reduced the workload of the staff, reduced the cost, improved the data management efficiency.