Abstract: A switching device and method for a portable display product includes a screen inserted on a body. A thicker handle is formed on one side of the body. Close to the center of one side of the screen, the handle disposes a main key, which is used most frequently. The side end of the handle is divided into an upper part and a lower part centered around the main key. Each part disposes a key unit, and the upper key unit is used more frequently. A control system disposed inside the body switches a display direction of the screen and function locations of the two key units for the convenience of one-handed operation.