An antenna support for a three-layer gatherer includes: a right-angled fixing bracket and a metallic plate. By employing the utility model, the antenna of the three-layer gatherer can be connected conveniently to a right-angled wall by the right-angled fixing bracket. The lengthways and transverse non-obstacle signal transmission in a range of 270 degrees can be achieved by using the antenna of the three-layer gatherer; and thereby the qualified rate of the signal gathering and the on-line rate of the terminal are ensured.