Recently, the dynamic calcination of magnesium oxide technology has been successfully developed at the Shenyang Institute of Science and Technology Machinery Industry and will be put into production in Hebei, Shandong, Inner Mongolia, Qinghai and other places, providing a new way for the production of magnesium salt products. The magnesium salt product complete production line developed by the institute has successfully used hexahydrate Magnesium Chloride calcined into high-purity magnesium oxide with a purity of 98% to 99.9%. Local adjustments in the production process can also produce multiple varieties and special applications. The refined and functionalized fine magnesium salt products meet the national environmental protection standards in the entire production process, which has enabled China's industrial production technology for high-purity magnesium salt products to reach the international level. China is rich in magnesium chloride resources. Magnesium chloride has unique advantages in magnesium salt products. Under the advanced technological conditions, it can produce a series of magnesium salt products and high-grade functional materials. For many years, in the industrial production of magnesium salt products, the industry has been looking for low-cost, high-quality magnesium salt production methods. It is understood that compared with static calcination, dynamic calcination technology has the characteristics of controllable temperature during continuous operation, sufficient gas-solid mixing, and stable product quality. It has been successfully applied in non-ferrous metals, chemicals, building materials and other industries. The application of this technology to the development of magnesium salt products can greatly reduce production costs.