An electronic device includes a housing and a functional module received in the housing. The housing includes a bottom wall, two sidewalls extending from opposite sides of the bottom wall, and two connecting walls. Each of the connecting walls extends from an edge of each sidewall away from the bottom wall and bends towards to the other of the connecting walls. The bottom wall, the sidewalls and the connecting walls cooperatively form a receiving space having at least one opening. The functional module includes a fixing frame positioned adjacent to the bottom wall, a circuit board positioned on the fixing frame, and a display panel positioned on circuit board away from the fixing frame and electrically connected with the circuit board. The fixing frame is capable of being slidably pushed into the housing via the at least one opening together with the circuit board and the display panel.