The present disclosure discloses a portable electronic device including a primary display panel, a keyboard module, a secondary display panel, and a support plate. The primary display panel includes a first pivot and a second pivot. The first pivot and the second pivot are disposed at the primary display panel. The keyboard module faces the primary display panel and includes a third pivot. One side of the secondary display panel is connected to the first pivot, and another side is a free side. The secondary display panel is flipped through the first pivot to be overlapped on an upper surface of the keyboard module or to abut against the upper surface at the free side. The support plate is flipped through the second pivot and the third pivot to be overlapped on the bottom surface of the primary display panel or to support the primary display panel.