An application program sharing framework and method includes an Basic input/output system for issuing the starting command of a second operating system which consuming fewer system resources, an application program executed in an environment of the second operating system, and an interface for transforming the data parameter and the parameter of the multimedia playing program in the first operating system into the executable format of the second operating system. Accordingly, the waiting time for starting the first operating system and the resource consuming will be reduced, and the resource sharing, re-installation avoidance and storage-saving can be achieved as well.