A portable electronic device structure includes a first body, a connection plate, and a second body. The connection plate, pivoted to the first body, has an interworking assembly and a notch. The notch has a sliding portion and a positioning portion connected to each other. The second body has a sliding block pivoted to the interworking assembly and sliding in the sliding portion. The connection plate pivotally rotates to an open position with respect to the first body, and enables the interworking assembly to drive the second body to displace in a direction away from the first body. At this time, the sliding block slides into the positioning portion and pivotally rotates with respect to the interworking assembly, so as to drive the second body to rotate with respect to the interworking assembly.