The invention relates to a construction engineering aerial work platform, which includes a plurality of building fences, supporting steel pipes and building fence connectors, the building fences are made of plastic steel, and the building fences are arranged on the supporting steel pipes. The fence is provided with connecting holes, and the building fences are clamped together through the connecting holes. The invention adopts plastic-steel material to be used on the building fence, which has high quality, long life, high practical performance, two-thirds of the weight of the original bamboo row, convenient installation, transportation and operation, and is durable for resisting sunlight and ultraviolet rays in the open air, and the service life can reach one-half of that of moso bamboo. more than double. At the same time, it is connected through the clamping method, and the work efficiency of installing the plastic steel fence is more than five times that of the original tie wire. It has the advantages of fast installation, fixed positioning, safety and reliability, and easy disassembly. It also greatly improves the work efficiency of the installation of the plastic steel fence.