Protective device for building construction site

The utility model discloses a building construction site protection device, which relates to the technical field of building construction, and comprises a protection device main body, the top of the protection device main body is fixedly provided with a protection soft cushion, and the bottom of the protection device main body is fixedly provided with a main body bottom plate; the protection device body comprises a mounting unit, an anti-rust unit and a reinforcing unit, the protection cushion comprises a protection unit, and the mounting unit comprises a fixing clamping ring, a clamping and fixing cylinder, a connecting plate and a buffering protection net. The anti-rust protective device is provided with the anti-rust inner layer, so that the problems that in the using process of an existing protective device, the surface of a main body is prone to rust after the device is used for a long time, a shell of the device falls off, and the using safety of the device is reduced are solved; and through the anti-ru