With the improvement of application technology of magnesia-chrome bricks in Liaoning Province, ceramic fiber blankets are also expanding new application fields, such as the insulation and muffling of engines and exhaust pipes in automobile industry, insulation and insulation of household appliances industry, as well as the insulation and insulation of aerospace and polar science examination. In recent years, the application prospects of ceramic fibers in high-temperature firing kilns are also expanding day by day. Various products made of ceramic fibers are widely used in various kilns with the characteristics of good heat insulation effect, easy to use and small heat storage, which shows a high energy-saving efficiency. At present, with the rising global energy prices and energy saving becoming the national strategy of China, ceramic fibers with energy saving of 10-30% are more widely used in China than traditional refractories such as insulating bricks and castables, and their development prospects are very promising.