Floor brick paving auxiliary tool for building decoration construction

The utility model relates to a floor tile paving auxiliary tool for building decoration construction, which belongs to the technical field of building engineering construction, and comprises two floor tile paving gap-reserving width control plates which are arranged in a mutually perpendicular and crossed manner, a horizontal plate perpendicular to the floor tile paving gap-reserving width control plates is vertically fixed at the tops of the floor tile paving gap-reserving width control plates, and a level bubble is arranged on the horizontal plate; a wire hanging rod is vertically fixed on the horizontal plate; scale marks used for checking the flatness and elevation phase of the floor tiles are horizontally carved on the floor tile paving seam reserving width control plate. When the floor tile paving auxiliary tool for building decoration construction is used for paving floor tiles, whether the four floor tiles are located at the same horizontal elevation or not can be checked through the scale marks on th