Diatomite as a kind of biogenic siliceous sedimentary rock is widely distributed in the world, but less with high economic values. China, abundant in diatomite resource, is one of major diatomite producers. In diatomite product structures, however, China has a big gap. As power saving and environment requires, China's diatomite product structures will be largely improved. The dominant developing trends for the diatomite industry include top-quality diatomite filtration, functional fillings and compound materials, insulation materials, water treatment agents and absorbent, and purification materials. China's diatomite industry must focus on extensive utilization, renovation and industrial platform construction.