An exemplary foldable electronic device includes a first cover, a second cover coupled to the first cover and a latch mechanism. The latch mechanism includes a hooking portion disposed on the first cover and a latching portion disposed in the second cover and arranged corresponding to the hooking portion. The latching portion includes a button, a latch fixed relative to the button, and an elastic member disposed between the second cover and the button. The button partially protrudes out of the second cover and is slidable relative to the second cover. The button and the elastic member are capable of moving the latch latching with, or unlatching from, the hooking portion.