A rotation mechanism, comprising a lifting member, a shaft cover, a first swing arm, a second swing arm, a forcing structure, a first supporting member, and a second supporting member; wherein the lifting member comprises a lamination surface, and the lamination surface is configured for lamination with a flexible part of a foldable screen such that the lamination surface fastens and supports the flexible part of the foldable screen to the lifting member; and the shaft cover is located on a side that is of the lifting member and that is away from the lamination surface; the first swing arm and the second swing arm are respectively located on two opposite sides of the lifting member, and the first swing arm and the second swing arm are each configured such that, when in use, they swing between an unfolded position and a folded position relative to the shaft cover; the forcing structure is located between the lifting member and the shaft cover, one end of the forcing structure is connected to the lifting member, and the other end thereof is connected to the shaft cover; and the first supporting member is fastened to the first swing arm and the second supporting member is fastened to the second swing arm; wherein the rotation mechanism is configured such that: when the first swing arm and the second swing arm are in the unfolded position, the lifting member is supported on the first supporting member and the second supporting member, and the forcing structure is configured such that, when in use, it applies a tensile force directed to the shaft cover to the lifting member; and when the first swing arm and the second swing arm swing from the unfolded position to the folded position, the first supporting member and the second supporting member are each configured such that, when in use, they move toward the shaft cover, and the lifting member is configured such that, when in use, it descends under an action of the tension force of the forcing structure. the lifting member comprises a lamination surface, and the lamination surface is configured for lamination with a flexible part of a foldable screen such that the lamination surface fastens and supports the flexible part of the foldable screen to the lifting member; and the shaft cover is located on a side that is of the lifting member and that is away from the lamination surface; the first swing arm and the second swing arm are respectively located on two opposite sides of the lifting member, and the first swing arm and the second swing arm are each configured such that, when in use, they swing between an unfolded position and a folded position relative to the shaft cover; the forcing structure is located between the lifting member and the shaft cover, one end of the forcing structure is connected to the lifting member, and the other end thereof is connected to the shaft cover; and the first supporting member is fastened to the first swing arm and the second supporting member is fastened to the second swing arm; wherein the rotation mechanism is configured such that: when the first swing arm and the second swing arm are in the unfolded position, the lifting member is supported on the first supporting member and the second supporting member, and the forcing structure is configured such that, when in use, it applies a tensile force directed to the shaft cover to the lifting member; and when the first swing arm and the second swing arm swing from the unfolded position to the folded position, the first supporting member and the second supporting member are each configured such that, when in use, they move toward the shaft cover, and the lifting member is configured such that, when in use, it descends under an action of the tension force of the forcing structure.