Provided is an aluminum-based composite foam material filling pipe whip limiting part. The invention relates to a nuclear power plant main pipeline whip limiting part, and aims at solving the problem that at present, for frequently-used whip limiting parts of nuclear power plant main steam and main water supply pipelines, when the pipelines are limited to whip, the whip force is too large or deformation is too large. The aluminum-based composite foam material filling pipe whip limiting part is composed of multiple aluminum-based composite foam material filling pipes, an upper connecting steel plate and a lower connecting steel plate; each aluminum-based composite foam material filling pipe is composed of a stainless steel pipe, aluminum-based composite foam materials filling up the stainless steel pipe and circular fixed steel plates which cover the two ends of the stainless steel and are provided with grooves. Compared with U-shaped and H-shaped limiting parts, the aluminum-based composite foam material filling pipes which is subjected to reasonable and optimized design have proper strength and rigidity and good energy dissipation capacity, whip and deformation of the pipelines can be well restricted, and the whip force of the pipelines can be greatly reduced so as to reduce loads delivered to a civil structure.