1. A system for providing security policy for a Linux-based security operating system, comprising: a template policy module configured to set authority using policy information of a downloaded application and set an access control rule for accessing a system resource of the downloaded application based on the authority; a base policy module configured to execute 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 configured to acquire policy manifest and installation information using the policy information, and generate a custom application corresponding to the downloaded application using the policy manifest and the installation information, wherein the template policy module editor generates the custom application directly after acquiring the policy manifest and the installation information, wherein the policy manifest is generated from a provider of the downloaded application, and wherein the custom application is different from the downloaded application.