All kinds of reserved holes, feed inlets, pipe pits, ditches, grooves, etc. in the floor, and all kinds of protection during the construction of work at heights play a guiding role. There are many hazards in this project, most of which are related to edge protection. For this reason, the project department should clarify the protection requirements from the initial stage of construction, implement responsibilities, strengthen management, and earnestly implement the policy of safe production to ensure the smooth progress of the project