Mainly insulation and high temperature resistance. The high temperature resistant mica board is made by bonding, heating and pressing mica paper and organic silica gel water. The mica content is about 90% and the organic silica gel water content is 10%. Mica board has excellent bending strength and processing performance. The product has high bending strength and excellent toughness. It can be processed in various shapes without delamination. Excellent environmental performance, the product does not contain asbestos, has less smoke and odor when heated, and is even smokeless and tasteless.