The present invention provides a mobile terminal, which includes a Vivaldi antenna system arranged in the mobile terminal, wherein the Vivaldi antenna system includes two pairs of Vivaldi antenna arrays, opening directions of one pair of the Vivaldi antenna arrays are along a length direction of the mobile terminal, opening directions of the other pair of the Vivaldi antenna arrays are along a thickness direction of the mobile terminal, and each pair of the Vivaldi antenna arrays includes two Vivaldi antenna arrays with opposite opening directions, and the Vivaldi antenna arrays operate in a frequency band of 5G millimeter waves. Compared with the related art, the mobile terminal provided by the present disclosure has wide and uniform beam bandwidths in a non-scanning direction, thus achieving excellent spatial coverage efficiency.