A method for displaying a task management interface, wherein the method comprises: receiving (S110) an operation for enabling a task management screen; selecting (S340) at least one application program from installed application programs according to use frequency of using the installed application programs by a user; in response to receiving the operation for enabling a task management screen and after the selecting, displaying (S120) the task management interface, wherein the task management interface comprises a preview interface of one application program of the at least one application program and two icons respectively corresponding to two commonly used functions of the one application program, the preview interface of the one application program is a scaled interface of a window of the one application program, the preview interface reflects a change of the one application program in real time, and the two icons corresponding to the two commonly used functions of the one application program are located in the preview interface of the one application program; receiving (S130) a tap operation on one of the two icons; in response to the tap operation, switching(S140) the application program corresponding to the tapped icon to a foreground, and executing(S140) the function; wherein executing(S140) the function comprises: obtaining an identification parameter of the commonly used function corresponding to the tapped icon from a storage area; determining a functional interface of the commonly used function according to the identification parameter of the commonly used function corresponding to the tapped icon; and displaying (S380) the functional interface on the foreground. receiving (S110) an operation for enabling a task management screen; selecting (S340) at least one application program from installed application programs according to use frequency of using the installed application programs by a user; in response to receiving the operation for enabling a task management screen and after the selecting, displaying (S120) the task management interface, wherein the task management interface comprises a preview interface of one application program of the at least one application program and two icons respectively corresponding to two commonly used functions of the one application program, the preview interface of the one application program is a scaled interface of a window of the one application program, the preview interface reflects a change of the one application program in real time, and the two icons corresponding to the two commonly used functions of the one application program are located in the preview interface of the one application program; receiving (S130) a tap operation on one of the two icons; in response to the tap operation, switching(S140) the application program corresponding to the tapped icon to a foreground, and executing(S140) the function; wherein executing(S140) the function comprises: obtaining an identification parameter of the commonly used function corresponding to the tapped icon from a storage area; determining a functional interface of the commonly used function according to the identification parameter of the commonly used function corresponding to the tapped icon; and displaying (S380) the functional interface on the foreground. obtaining an identification parameter of the commonly used function corresponding to the tapped icon from a storage area; determining a functional interface of the commonly used function according to the identification parameter of the commonly used function corresponding to the tapped icon; and displaying (S380) the functional interface on the foreground. <EOS>