An electronic device is provided. The electronic device includes a first housing, a second housing connected to the first housing so as to be foldable, with a folding axis between the first housing and the second housing, a display module including a first area, a second area, and a folding area, and a plate disposed on a rear surface of the display module, the plate including a first plate coupled to the first area and a second plate coupled to the second area. The first plate includes a first slit area including a plurality of first extensions extending toward the second plate and a plurality of first slits formed between the plurality of first extensions. The second plate includes a second slit area including a plurality of second extensions extending toward the first plate and a plurality of second slits formed between the plurality of second extensions.