Melamine foam is a lightweight porous material with an open porosity rate exceeding 99%. It possesses inherent flame retardancy and excellent properties such as sound absorption and noise reduction, thermal insulation, cushioning and shock absorption, as well as environmental safety. It finds wide applications in various fields such as cold insulation materials for rail transit, flame retardant and sound absorbing materials for buildings, pipeline insulation and noise reduction materials, and equipment cushioning and thermal insulation materials. Its outstanding secondary processing capability enables it to be used in various forms for acoustic treatment and noise control in venues such as hotels, schools, hospitals, sports arenas, and auditoriums.