A portable electronic apparatus comprises a first housing, a display panel, a shaft housing, a second housing, and a circuit board. The display panel is embedded in the first housing. The shaft housing is connected and fixed to a side of the first housing, and two ends of the shaft housing are hinged on a side of the second housing, such that the first housing is rotated with respect to the second housing through the shaft housing. The circuit board is disposed in the shaft housing and electrically connected to the display panel.