In order to perform anti-detonating property experimental study for engineering structures and equipment,building facilities such as explosion proof wall are involved during the design and establishment of multifunctional explosive experimental equipment. Based on one-dimensional elastic stress wave theory,the main problems of the structural design and the anti-detonating performance of the steel-structured composite explosion-proof wall are analyzed. The rationality and the effectiveness of the structural design of this type of explosion-proof wall are tested and verified by finite element analyzing method.