Fall protection system provides safety working condition at height. Longdyes fall protection guardrail is made of lightweight aluminum alloy, the removable fixings could help to move handrail and keenrail up and down easily, and easier to install with light weight and quick fixings, with 1.75m span between posts, it will save installing time and cost effective also. Longdyes fall protection guardrail provides a wide range of installation solutions, it could be fixed on floor or parapet and it also could be installed on roof without any drilling and screws. It could be upright, 30 degree inclined and foldable.