Protection device for preventing foreign matter on high-altitude construction platform from falling

The utility model relates to a protection device for preventing foreign matters on a high-altitude construction platform from falling, which comprises a climbing structure (1), the periphery of the climbing structure (1) is provided with a construction platform (2), the construction platform (2) comprises a supporting bottom plate (21), the supporting bottom plate (21) is provided with an inner protection net plate (22) and an outer protection net plate (23), and the inner protection net plate (22) and the outer protection net plate (23) are arranged on the supporting bottom plate (21). And a foldable screen plate (3) is arranged at the top of the inner protective screen plate (22). The protection device for preventing the foreign matter on the high-altitude construction platform from falling can effectively guide the foreign matter caused by construction to slide to the bottom of the construction platform, so that the foreign matter is prevented from falling, and the protection device is suitable for the hig