The invention discloses a mobile terminal, a method of realizing a directional voice assistant and device. The method comprises steps: whether the touch pressure of a user touching a screen currentlyreaches a preset pressure range is detected; if yes, a voice assistant is started; the position area of a run control on which the touch pressure reaching the preset pressure range acts currently is acquired; and according to a voice instruction received by the voice assistant, corresponding operation is directionally carried out on the display content of the position area. According to the mobileterminal, the method of realizing the directional voice assistant and the device, in combination of a pressure touch screen technology and the voice assistant, the directional voice assistant is realized, the voice instruction acquired by the voice assistant thus has clear directionality, a mobile phone operation system is thus controlled to operate on a specified use operation process accordingto the directionality of the voice instruction, the amount of participation by manual operation is reduced, and the intelligent degree in the mobile phone use operation process is improved.