Pouring system and pouring method of concrete spreader for fabricated building construction

The invention belongs to the field of building construction, and mainly relates to a pouring system and pouring method of a concrete spreader for fabricated building construction. The pouring system of the concrete spreader comprises the spreader and a mounting base. A concrete spreader system applied to a fabricated building enables the spreader pouring system and a pouring working layer supporting system to be separated and placed on the lower floor surface of a working layer, the pumping force of the pouring concrete is borne by the lower floor, and it is ensured that the quality and safetyproblems are not caused due to the fact that laminated slabs in the working layer do not be displaced or damaged; the former way of directly moving a pump pipe to spread concrete is changed, and theconstruction efficiency is improved; the fast and stable installation of the spreader and a mounting base is realized by using the fast and fixed mounting base, in addition, a reinforcement system isadded to carry out reinforc