The invention discloses a building construction fence which comprises a bottom plate, a baffle plate, supporting rods and a horizontal plate. The baffle plate is mounted in the middle of the bottom plate, the baffle plate is fixedly connected with the bottom plate, the supporting rods are arranged on two sides of the baffle plate and fixedly connected with the bottom plate and the baffle plate respectively, the horizontal plate is mounted in the middle of the baffle plate, one end of the horizontal plate is fixedly connected with the baffle plate, a fixing rod is mounted at the other end of the horizontal plate, the baffle plate comprises an aluminum alloy honeycomb layer, a pp (polypropylene) glass fiber layer, a rubber layer and a reflection strip which are sequentially connected, and a reinforcing plate is mounted on one side of the aluminum alloy honeycomb layer. The building construction fence is high in structural strength and convenient to mount and has a buffer function.