The invention provides a unified interface setting method, a system and a readable storage medium, which are used for uniformly setting the setting interface of a intelligent television with an Android system in a preset application, so that preset application setting items are uniformly butted. The workload is reduced, the safety is improved, and a basic setting interface is provided for third-party application access. The method comprises the following steps of realizing Content Provider by presetting application inheritance; providing a Uri access interface of a Content Provider for an external application; accessing an external application through the Uri of the Content Provider, and adopting a setting interface; converting information carried by a Uri interface of a Content Provider into a corresponding setting function by a preset setting application. According to the method, an original setting module of the preset application is used for accessing an SDK of a manufacturer or anSDK of an Android system, related functions are set, a result is returned to the external application, and the purpose of unifying setting interfaces in the preset application is achieved.