Data security protection and backup control method and system for terminal

The invention relates to the technical field of data processing, and provides a data security protection and backup control method and system for a terminal, and the method comprises the steps: checking an associated folder for performing task operation on the terminal so as to identify the associated folder in which a data change event occurs, and then performing data sampling and analysis on a corresponding storage interval of the terminal so as to realize data security protection and backup control. Whether a data security event occurs in the storage interval or not is judged, and based on the attribute information of the data security event, whether isolation processing or transfer backup processing is carried out on the data in the storage interval is judged, so that targeted protection operation is executed on the data in the storage interval; the normal data is isolated based on the normal data storage address information of the storage interval, so that the normal data is prevented from being illegall