The explosion-proof pressure relief board (explosion venting board) is made of natural mineral resources, and is composed of selected quartz powder, mica, perlite, high-quality plant fibers and a variety of mineral fibers, supplemented by cement and additional fire-resistant materials. It is produced by the leading slurry method and processed by high-temperature and high-pressure steaming to form a green environmental protection and energy-saving light-weight building fireproof board mainly composed of torbemullite crystal structure with high stability.