Double-open application switching method and related equipment

Embodiments of the invention disclose a double-open application switching method and related equipment. The switching method comprises the following steps of: under the condition that a first operation instruction input for a double-open interface of a double-open application is received, outputting an application interface corresponding to the first operation instruction; under the condition thatthe output application interface comprises a main application interface, if a second operation instruction input for an application icon of a secondary application in a primary application interfaceis received, outputting a secondary application interface included in the application interface; under the condition of outputting the secondary application interface, if a third operation instructioninput for an application icon of a primary application in the secondary application interface is received, outputting the primary application interface. Through the method, the operation step of switching between the primary a