Abstract: In order to solve the problems of low construction efficiency and high labor intensity caused by the use of hollow blocks in traditional mine temporary closed masonry, a kind of mining silicate composite two-phase block with light weight, high strength and strong deformation resistance is developed. The performance test results show that the composite two-phase block has non-flammability, thermal insulation and anti-static properties, which fully meets the technical requirements of temporary closed wall in coal mine. The practical application in Daliuta Coal Mine shows that the construction of temporary closed walls with this new type of block can significantly save labor and vehicle costs, reduce labor intensity, improve loading, unloading and transportation convenience, and have good construction quality and solidity of cementation, effectively avoiding air leakage. In addition, the material is reusable, which helps promote standardization and dynamic compliance management on the construction site.