A retractable screen structure, comprising: a holder assembly comprising a holder; a rotation shaft assembly comprising: a rotation shaft support coupled to a side of the holder and having a shaft hole, a rotation shaft passing through the shaft hole, a rotation wheel fitted over the rotation shaft; and a flexible display screen wound around the rotation wheel, and configured to drive the rotation wheel to rotate when the flexible display screen is expanded or retracted, wherein: the rotation shaft is fixedly coupled to the shaft hole, and the rotation wheel is rotatably coupled to the rotation shaft, the rotation shaft support comprises a plurality of sub-supports spaced apart from each other on the holder, and the rotation wheel comprises a plurality of rotation sub-wheels, one rotation sub-wheel being arranged between two adjacent sub-supports the rotation shaft assembly further comprises a plurality of first bearings fitted over the rotation shaft, one first bearing being arranged on each of both sides of the rotation sub-wheel, and each first bearing comprises a bearing inner ring and a bearing outer ring rotatably coupled to the bearing inner ring, the bearing inner ring being coupled to the rotation shaft, and the bearing outer ring being coupled to the rotation sub-wheel, characterized in that: the rotation shaft assembly further comprises a plurality of bearing spacers fitted over the rotation shaft, one bearing spacer being arranged on a side of each first bearing; and each bearing spacer has a first end abutting against a bearing inner ring and a second end abutting against an adjacent sub-support. a holder assembly comprising a holder; a rotation shaft assembly comprising: a rotation shaft support coupled to a side of the holder and having a shaft hole, a rotation shaft passing through the shaft hole, a rotation wheel fitted over the rotation shaft; and a rotation shaft support coupled to a side of the holder and having a shaft hole, a rotation shaft passing through the shaft hole, a rotation wheel fitted over the rotation shaft; and a flexible display screen wound around the rotation wheel, and configured to drive the rotation wheel to rotate when the flexible display screen is expanded or retracted, wherein: the rotation shaft is fixedly coupled to the shaft hole, and the rotation wheel is rotatably coupled to the rotation shaft, the rotation shaft support comprises a plurality of sub-supports spaced apart from each other on the holder, and the rotation wheel comprises a plurality of rotation sub-wheels, one rotation sub-wheel being arranged between two adjacent sub-supports the rotation shaft assembly further comprises a plurality of first bearings fitted over the rotation shaft, one first bearing being arranged on each of both sides of the rotation sub-wheel, and each first bearing comprises a bearing inner ring and a bearing outer ring rotatably coupled to the bearing inner ring, the bearing inner ring being coupled to the rotation shaft, and the bearing outer ring being coupled to the rotation sub-wheel, characterized in that: the rotation shaft assembly further comprises a plurality of bearing spacers fitted over the rotation shaft, one bearing spacer being arranged on a side of each first bearing; and each bearing spacer has a first end abutting against a bearing inner ring and a second end abutting against an adjacent sub-support. the rotation shaft is fixedly coupled to the shaft hole, and the rotation wheel is rotatably coupled to the rotation shaft, the rotation shaft support comprises a plurality of sub-supports spaced apart from each other on the holder, and the rotation wheel comprises a plurality of rotation sub-wheels, one rotation sub-wheel being arranged between two adjacent sub-supports the rotation shaft assembly further comprises a plurality of first bearings fitted over the rotation shaft, one first bearing being arranged on each of both sides of the rotation sub-wheel, and each first bearing comprises a bearing inner ring and a bearing outer ring rotatably coupled to the bearing inner ring, the bearing inner ring being coupled to the rotation shaft, and the bearing outer ring being coupled to the rotation sub-wheel, characterized in that: the rotation shaft assembly further comprises a plurality of bearing spacers fitted over the rotation shaft, one bearing spacer being arranged on a side of each first bearing; and each bearing spacer has a first end abutting against a bearing inner ring and a second end abutting against an adjacent sub-support. the rotation shaft assembly further comprises a plurality of bearing spacers fitted over the rotation shaft, one bearing spacer being arranged on a side of each first bearing; and each bearing spacer has a first end abutting against a bearing inner ring and a second end abutting against an adjacent sub-support.