The invention discloses a telescopic flexible film sunshade system. The system comprises an extension bracket, and flexible films arranged on the extension bracket, wherein the extension bracket includes upper stay ropes, a shear type hinge system and a driving control system; the shear type hinge system comprises a first shear type unit and a second shear type unit; the first shear type unit and the second shear type unit are parallel; one ends of the flexible films are fixed at the other ends of the first shear type unit and the second shear type unit; and the other ends of the flexible films are respectively inserted in guide structures positioned at end nodes of all shear type hinge units at the same sides of the shear type units, and are connected with uncoiler systems. The no-fold flexible film sunshade system capable of automatically extending can realize automatic opening or closing according to the external light strength, has the advantage of high folding rate, is clear in whole force transfer path, is reasonable in stress, improves the stability and the bearing capacity through arranging the upper stay rope, can realize no-fold opening and closing through the flexible films, and realizes multi-time circular use.