The invention relates to the field of touch keys, in particular to a mobile phone device and a realization method thereof. The mobile phone comprises a resistive touch screen, four coordinate electrodes, an upper row of touch keys, a lower row of touch keys and a four-pin connector, wherein the four coordinate electrodes are arranged around the resistive touch screen and comprise an X+ electrode,an X- electrode, a Y+ electrode and a Y- electrode; the upper row of touch keys is arranged by extending the resistive touch screen; the lower row of touch keys is arranged on the side edge of the resistive touch screen; and the four-pin connector is arranged on the side edge of the lower row of touch keys. In the mobile phone device and the realization method thereof, the area of the resistive touch screen is extended by using the principle of resistive touch, and a special folded wiring mode is added. Not only the design of touch keys near an antenna area is realized, but also antenna performance is ensured, the design reliability and the rick controllability are increased, the price is cheaper, and the backlight of the key area is easier to design.