A foldable screen device, comprising two frames (1, 2), an electrical connection line, and a rotating shaft assembly articulated with the two frames, wherein the two frames (1, 2) are capable of rotating around rotating shafts of the rotating shaft assembly to be closed or opened; and the rotating shaft assembly comprises hinges and a connection structure, the hinge is connected between the connection structure and the frame (1, 2), the connection structure has a channel passing through two opposite sides of the rotating shaft assembly, two ends of the electrical connection line are respectively connected to the two frames (1, 2), the electrical connection line penetrates into the channel, and the channel and the hinge are located at different positions of the rotating shaft assembly in an axial direction, characterised in that the connection structure comprises a first shaft cover and a second shaft cover, the first shaft cover and the second shaft cover are disposed opposite to each other, the first shaft cover is located on an inner side that is of the rotating shaft assembly and that is close to articulated ends of the frames (1, 2), the second shaft cover is located on a side that is of the rotating shaft assembly and that is close to free ends of the frames (1, 2), and the first shaft cover and the second shaft cover enclose a space capable of accommodating the rotating shafts, the connection structure further comprises a positioning piece, the positioning piece is located in the space jointly enclosed by the first shaft cover and the second shaft cover, and the channel is jointly formed by the positioning piece and one of the first shaft cover and the second shaft cover, and the foldable screen device further comprises a first magnetic piece and a second magnetic piece, wherein the first magnetic piece is disposed on the first shaft cover, the second magnetic piece is disposed on the positioning piece, and the first magnetic piece and the second magnetic piece are attractable to each other, so that the positioning piece and the first shaft cover are positioned to each other. the connection structure comprises a first shaft cover and a second shaft cover, the first shaft cover and the second shaft cover are disposed opposite to each other, the first shaft cover is located on an inner side that is of the rotating shaft assembly and that is close to articulated ends of the frames (1, 2), the second shaft cover is located on a side that is of the rotating shaft assembly and that is close to free ends of the frames (1, 2), and the first shaft cover and the second shaft cover enclose a space capable of accommodating the rotating shafts, the connection structure further comprises a positioning piece, the positioning piece is located in the space jointly enclosed by the first shaft cover and the second shaft cover, and the channel is jointly formed by the positioning piece and one of the first shaft cover and the second shaft cover, and the foldable screen device further comprises a first magnetic piece and a second magnetic piece, wherein the first magnetic piece is disposed on the first shaft cover, the second magnetic piece is disposed on the positioning piece, and the first magnetic piece and the second magnetic piece are attractable to each other, so that the positioning piece and the first shaft cover are positioned to each other.