A system for providing security policy for a Linux-based security operating system, which includes a template policy module configured to set an authority using policy information of a downloaded application so that the template policy module can set an access control rule for accessing a system resource of the application, a base policy module executing the access control rule for the system resource in accordance with the access control rule set by the template policy module, and a template policy module editor generating a custom application for the corresponding application using information output from the template policy module.