A portable terminal device (1) according to the present invention includes: a housing (11) comprising a concave portion (21) in which predetermined components are housed, and a mounting surface (22) that is disposed on a top surface of a side wall arranged around the concave portion (21); a fixing component (12) that is fixed to the mounting surface (22) of the housing (11) and comprises a mounting surface (23) and a protruding portion (24) that is arranged around outside of the mounting surface (23); and a display section (13) that is fixed to the mounting surface (23) at an inner side of the protruding portion (24) of the fixing component (12). Further, a rigidity of the fixing component (12) is lower than a rigidity of the housing (11) and the display section (13).