The invention relates to the technical field of preparation of heat-insulating and sound-insulating composite materials, and discloses a heat-insulating poly(p-phenylene terephthalamide-foam glass) sound-insulating composite material, which includes the following raw materials, waste glass slag, waste mineral wool board, Polyparaphenylene terephthalamide, foaming aids, foam stabilizers, auxiliary additives, mixed auxiliary solvents, silane coupling agents, waste glass slag, and waste mineral wool boards are recycled construction waste soda lime glass waste. The poly-p-phenylene terephthalamide-foam glass sound insulation composite material uses KOH as a foaming aid, adding Na 2 B 4 O 5 (OH) 4 ·8H 2 O is an auxiliary additive, KOH and Na before foaming 2 B 4 O 5 (OH) 4 ·8H 2 O and SiO in soda lime glass 2 , CaO reaction to produce KNaCaSi 2 O 6 ·6H 2 O crystal, KNaCaSi 2 O 6 ·6H 2 During the heating and foaming process, the O crystal releases steam to make the raw materials foam. This method increases the foaming porosity, and the foaming process is stable. The generated pores are small and evenly distributed, which can effectively absorb sound waves and greatly enhance The sound insulation effect of foam glass.