Provided are a method and apparatus for receiving, storing, and executing a data broadcast application. The apparatus includes an application controller that determines whether receiving of application data needed to execute an application is completed before storing of a data broadcast is completed, allows the received application data to be stored when receiving of the application is completed, and determines whether the application will be executed together with audio/video data when the stored data broadcast is reproduced; and a storage unit that stores the completely received application data together with the audio/video data. Accordingly, it is possible to prevent the occurrence of errors in executing an application.