The invention discloses a polycrystalline silicon chip ink removing clamp comprising a first fixed plate, a second fixed plate and a flexible plate. The first fixed plate and the second fixed plate are fixedly connected through two guide rails. The first fixed plate and the second fixed plate are oppositely arranged and mutually parallel. The two guide rails are perpendicular to the first fixed plate and the second fixed plate, and the two guide rails are mutually parallel. The flexible plate and multiple corrugated metal meshes are inserted on the guide rails. The silicon chips are orderly arranged between the two guide rails, and the guide rails can support the silicon chips so that operation is easy and rapid; and the adjacent silicon chips are separated by the wavy corrugated metal mesh so that multiple polycrystalline silicon chips can be fixed on the clamp in one step, the two surfaces of each silicon chip are ensured to fully contact the sodium hydroxide, the ink removing efficiency and quality can be enhanced, the flexible plate can slide on the guide rails under the effect of the cylinder, and arbitrary number of silicon chips can be fixed and the flexibility is high.