The invention provides a slip-drop preventing fence of a high platform. The slip-drop preventing fence of the high platform comprises a fence plate support, a fence plate, a
gap filling mechanism, a supporting platform, a
hydraulic cylinder, an
inductive sensor and an electromagnetic device, wherein the fence plate is positioned on one side of the fence plate support; the lower end of the fence plate is rotatably connected with the lower end of the fence plate support; the
gap filling mechanism is connected to the upper end of the fence plate; the supporting platform is positioned on the other side of the fence plate support, and is horizontally connected to the lower end of the fence plate support; the
hydraulic cylinder is mounted on the supporting platform through a movable support, and is connected with the upper end of the fence plate through a
piston rod; the
piston rod is movably connected with the upper end of the fence plate; the
inductive sensor is mounted on the supporting platform; and the electromagnetic device is mounted in the fence plate and is connected with the
gap filling mechanism by the magnetic force. According to the design, when a
train enters the platform, a gap between the
train and the platform is filled automatically through the gap filling mechanism, and therefore, the circumstances that passengers miss their steps and feet of the passengers are pinched are avoided.