A sliding flexible display device (10, 20, 30), the sliding flexible display device (10, 20, 30) comprising: a flexible display panel (11, 21, 31); and a sliding component (12, 22, 32) configured to carry the flexible display panel (11, 21, 31); wherein the sliding component (12, 22, 32) comprises a plurality of sliding modules, and a sliding connection part is disposed between the sliding modules; wherein the sliding flexible display device (10, 20, 30) comprises a flat state, a retracted state, and a folded state based on different working states of the sliding flexible display device; when the sliding flexible display device (10, 20, 30) is in the flat state, the plurality of sliding modules are arranged in parallel, and the flexible display panel (11, 21, 31) is flattened and disposed on a flat surface formed by the plurality of sliding modules; when the sliding flexible display device (10, 20, 30) is in the retracted state, a part or a whole part of the sliding modules is on a back side of another part of the sliding modules, and a part of the flexible display panel is folded and disposed between two adjacent sliding modules; when the sliding flexible display device (10, 20, 30) is in the folded state, the plurality of sliding modules are arranged in stacks, and the flexible display panel (11, 21, 31) is partially folded and disposed between the two adjacent sliding modules, characterized in that a protective layer (14, 24, 34) is disposed between the flexible display panel (11, 21, 31) and the sliding component (12, 22, 32), and the protective layer (14, 24, 34) is configured to prevent friction or collision of the sliding component (12, 22, 32) with the flexible display panel (11, 21, 31). a flexible display panel (11, 21, 31); and a sliding component (12, 22, 32) configured to carry the flexible display panel (11, 21, 31); wherein the sliding component (12, 22, 32) comprises a plurality of sliding modules, and a sliding connection part is disposed between the sliding modules; wherein the sliding flexible display device (10, 20, 30) comprises a flat state, a retracted state, and a folded state based on different working states of the sliding flexible display device; when the sliding flexible display device (10, 20, 30) is in the flat state, the plurality of sliding modules are arranged in parallel, and the flexible display panel (11, 21, 31) is flattened and disposed on a flat surface formed by the plurality of sliding modules; when the sliding flexible display device (10, 20, 30) is in the retracted state, a part or a whole part of the sliding modules is on a back side of another part of the sliding modules, and a part of the flexible display panel is folded and disposed between two adjacent sliding modules; when the sliding flexible display device (10, 20, 30) is in the folded state, the plurality of sliding modules are arranged in stacks, and the flexible display panel (11, 21, 31) is partially folded and disposed between the two adjacent sliding modules, characterized in that a protective layer (14, 24, 34) is disposed between the flexible display panel (11, 21, 31) and the sliding component (12, 22, 32), and the protective layer (14, 24, 34) is configured to prevent friction or collision of the sliding component (12, 22, 32) with the flexible display panel (11, 21, 31).