The present invention relates to a mobile terminal comprising: a front case having a display mounted on the front part thereof; a rear case coupled to one side of the front case and coupled to the rear part of same; a main circuit board provided between the front case and the rear case; and a fluid movement port having a groove, of a predetermined depth, formed to be adjacent to the edge of the front part of the front case and extend in one direction, wherein the fluid movement port can guide the movement of fluid which enters through gaps between the display and the front case.