The invention provides a method and device for switching interfaces dynamically. The method includes the steps that a first attribute configuration file of the first display interface and a second attribute configuration file of the second display interface are pre-configured, and when a switching instruction of switching the first display interface displayed currently to the second display interface is received, the second attribute configuration file of the second display interface is acquired; the second display interface is loaded according to the difference between the display attribute of the second attribute configuration file and the display attribute of the first attribute configuration file; the first display interface displayed currently is switched to the second display interface to display the second display interface. By the adoption of the method or device for switching the interfaces dynamically, the performance of a computer system will not be affected, the sense of pausing existing in interface switching is avoided, so that user experience is improved. Meanwhile, interface codes are not needed for achieving interface switching, so that high cost caused by maintenance of the codes with complex structures is avoided.