Mobile terminal dialing by side key

The utility model discloses a mobile terminal for dialing a telephone by adopting a side button, which comprises a keyboard, an LCD, a main board and a battery, wherein the keyboard and the LCD are respectively connected with the main board and the battery. The mobile terminal is characterized in that a side button is arranged at the mobile terminal, the side button is connected with the main board, and the telephone is dialed through the side button. Compared with the prior mobile terminal for dialing the telephone, in the mobile terminal, through arranging a new side button and detecting a long pressing side button, the dialing telephone is triggered, thereby the user can conveniently dial the telephone, and the operating requirement of the special personnel is satisfied.